1.Which of the following correctly declares an array?

• A.int array[10];
• B.int array;
• C.array{10};
• D.array array[10];

Answer: Option A

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2. What is the index number of the last element of an array with 9 elements?

• A. 9
• B.8
• C.0
• D.Programmer-defined

Answer: Option B

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3. What is a array?

• A.n array is a series of elements of the same type in contiguous memory locations
• B.An array is a series of element
• C.An array is a series of elements of the same type placed in non-contiguous memory locations
• D.None of the mentioned

Answer: Option A

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4.Which of the following accesses the seventh element stored in array?

• A.array[6];
• B.array[7];
• C.array(7);
• D.array;

Answer: Option A

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5.Which of the following gives the memory address of the first element in array?

• A.array[0];
• B.array[1];
• C.array[2];
• D.array;

Answer: Option D

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6.What is the output of this program?

#include < stdio.h> using namespace std; int main() { char str[5] = "ABC"; cout << str[3]; cout << str; return 0; }

• A.ABC
• B.ABCD
• C.AB
• D.None of the mentioned

Answer: Option A

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7.What is the output of this program?

#include < stdio.h> using namespace std; int main() { int array[] = {10, 20, 30}; cout << -2[array]; return 0; }

• A.-15
• B.-30
• C.compile time error
• D.garbage value

Answer: Option B

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8.The constants are also called as

• A.const
• B.preprocessor
• C.literals
• D.none of the mentioned

Answer: Option C

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9.What are the parts of the literal constants?

• A. integer numerals
• B. floating-point numerals
• C. strings and boolean values
• D. all of the mentioned

Answer: Option D

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10.How the constants are declared?

• A. const keyword
• B. #define preprocessor
• C. both a and b
• D. None of the mentioned

Answer: Option C

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11.What is the output of this program?

#include using namespace std; int main() { int const p = 5; cout << ++p; return 0; }

• A. 5
• B. 6
• C. Error
• D. None of the mentioned

Answer: Option C

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12.What is the output of this program?

#include < iostream> using namespace std; #define PI 3.14159 int main () { float r = 2; float circle; circle = 2 * PI * r; cout << circle; return 0; }

• A.12.566
• B.13.566
• C.10
• D.compile time error

Answer: Option A

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13.Which of the following statement is true about preprocessor directives?

• A. hese are lines read and processed by the preprocessor
• B. They do not produce any code by themselves
• C. These must be written on their own line
• D. They end with a semicolon

Answer: Option D

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14.Regarding following statement which of the statements is true? const int a = 100;

• A. Declares a variable a with 100 as its initial value
• B. Declares a construction a with 100 as its initial value
• C. Declares a constant a whose value will be 100
• D. Constructs an integer type variable with a as identifier and 100 as value

Answer: Option C

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15.The difference between x and 'x' is

• A. The first one refers to a variable whose identifier is x and the second one refers to the character constant x
• B. The first one is a character constant x and second one is the string literal x
• C. Both are same
• D. None of the mentioned

Answer: Option A

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16.How to declare a wide character in string literal?

• A. L prefix
• B. l prefix
• C. W prefix
• D. none of the mentioned

Answer: Option A

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17.What does inheritance allows you to do?

• A. create a class
• B. create a hierarchy of classes
• C. access methods
• D. None of the mentioned

Answer: Option C

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18.What is the syntax of inheritance of class?

• A. class name
• B. class name : access specifer
• C. class name : access specifer class name
• D. None of the mentioned

Answer: Option C

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19.How many types of inheritance are there in c++?

• A. 2
• B. 3
• C. 4
• D. 5

Answer: Option D

20.What is meant by containership?

---

• A. class contains objects of other class types as its members
• B. class contains objects of other class types as its objects
• C. both a & b
• D. none of the mentioned

Answer: Option A

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21.How many types of constructor are there in C++?

• A. 1
• B. 2
• C. 3
• D. 4

Answer: Option C

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22.How many constructors can present in a class?

• A. 1
• B. 2
• C. 3
• D. multiple

Answer: Option D

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23.What should be the name of constructor?

• A. same as object
• B. same as member
• C. same as class
• D. none of the mentioned

Answer: Option C

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24.What does derived class does not inherit from the base class?

• A. constructor and destructor
• B. friends
• C. operator = () members
• D. all of the mentioned

Answer: Option C

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25.What is meant by polymorphism?

• A. class having many forms
• B. class having only single form
• C. class having two forms
• D. none of the mentioned

Answer: Option A

---

26.Which design patterns benefit from the multiple inheritance?

• A. Adapter and observer pattern
• B. Code pattern
• C. Glue pattern
• D. None of the mentioned

Answer: Option A

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27.What are the things are inherited from the base class?

• A. Constructor and its destructor
• B. Operator=() members
• C. Friends
• D. All of the mentioned

Answer: Option D

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28.What is meant by multiple inheritance?

• A. Deriving a base class from derived class
• B. Deriving a derived class from base class
• C. Deriving a derived class from more than one base class
• D. None of the mentioned

Answer: Option C

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29.Which symbol is used to create multiple inheritance?

• A. Dot
• B. Comma
• C. Dollar
• D. None of the mentioned

Answer: Option A

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30.Which of the following advantages we lose by using multiple inheritance?

• A. Dynamic binding
• B. Polymorphism
• C. Both a & b
• D. None of the mentioned

Answer: Option C

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31.Which operator is having right to left associativity in the following?

• A. Array subscripting
• B. Function call
• C. Addition and subtraction
• D. Type cast

Answer: Option D

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32.Which operator is having the highest precedence?

• A. postfix
• B. unary
• C. shift
• D. equality

Answer: Option A

---

33.What is this operator called ?

• A. conditional
• B. relational
• C. casting operator
• D. none of the mentioned

Answer: Option A

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34.What is the use of dynamic_cast operator?

• A. it converts virtual base class to derived class
• B. it converts virtual base object to derived objeccts
• C. it will convert the operator based on precedence
• D. None of the mentioned

Answer: Option A

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35.How many sequence of statements are present in c++?

• A. 4
• B. 3
• C. 5
• D. 6

Answer: Option C

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36.The if..else statement can be replaced by which operator?

• A. Bitwise operator
• B. Conditional operator
• C. Multiplicative operator
• D. none of the mentioned

Answer: Option B

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37.The switch statement is also called as?

• A. choosing structure
• B. selective structure
• C. certain structure
• D. none of the mentioned

Answer: Option A

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38.The destination statement for the goto label is identified by what label?

• A. $
• B. @
• C. *
• D. :

Answer: Option A

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39.How many types of loops are there?

• A. 4
• B. 2
• C. 3
• D. 1

Answer: Option A

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40.Which looping process is best used when the number of iterations is known?

• A. for
• B. while
• C. do-while
• D. all looping processes require that the iterations be known

Answer: Option A

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41.Where does the execution of the program starts?

• A. user-defined function
• B. main function
• C. void function
• D. none of the mentioned

Answer: Option A

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42.What are mandatory parts in function declaration?

• A. return type,function name
• B. return type,function name,parameters
• C. both a and b
• D. none of the mentioned

Answer: Option A

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43.which of the following is used to terminate the function declaration

• A. :
• B. )
• C. ;
• D. none of the mentioned

Answer: Option A

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44.How many max number of arguments can present in function in c99 compiler?

• A. 99
• B. 90
• C. 102
• D. 127

Answer: Option D

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45.Which is more effective while calling the functions?

• A. call by value
• B. call by reference
• C. call by pointer
• D. none of the mentioned

Answer: Option B

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46. What is the scope of the variable declared in the user definied function?

• A. whole program
• B. only inside the {} block
• C. both a and b
• D. none of the mentioned

Answer: Option B

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47. How many minimum number of functions are need to be presented in c++?

• A. 0
• B. 1
• C. 2
• D. 3

Answer: Option B

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48. How many ways of passing a parameter are there in c++?

• A. 1
• B. 2
• C. 3
• D. 4

Answer: Option C

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49. Which is used to keep the call by reference value as intact?

• A. static
• B. const
• C. absolute
• D. none of the mentioned

Answer: Option B

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50.What will happen when we use void in argument passing?

• A. It will not return value to its caller
• B. It will return value to its caller
• C. both a & b are correct
• D. none of the mentioned

Answer: Option A

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51.What will you use if you are not intended to get a return value?

• A. static
• B. const
• C. volatile
• D. void

Answer: Option D

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52.Which operator is used to signify the namespace?

• A. conditional operator
• B. ternary operator
• C. scope operator
• D. none of the mentioned

Answer: Option A

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53.Identify the correct statement

• A. Namespace is used to group class, objects and functions
• B. Namespace is used to mark the beginning of the program.
• C. Namespace is used to seperate the class, objects.
• D. None of the above

Answer: Option A

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54.What is the use of Namespace?

• A. To encapsulate the data
• B. To structure a program into logical units.
• C. Both a and b
• D. none of the mentioned

Answer: Option B

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55.What is the general syntax for accessing the namespace variable?

• A. namespaceid::operator
• B. namespace,operator
• C. namespace#operator
• D. none of the mentioned

Answer: Option A

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56.Which keyword is used to access the variable in namespace?

• A. using
• B. dynamic
• C. const
• D. static

Answer: Option A

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57.What does the following statement mean?

int (*fp)(char*)

• A. pointer to a pointer
• B. pointer to an array of chars
• C. pointer to function taking a char* argument and returns an int
• D. function taking a char* argument and returning a pointer to int

Answer: Option C

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58.The operator used for dereferencing or indirection is ____

• A. *
• B. &
• C. ->
• D. ->>

Answer: Option A

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59.Choose the right options tring* x, y;

• A. x is a pointer to a string, y is a string
• B. y is a pointer to a string, x is a string
• C. both x and y are pointer to string types
• D. none of the mentioned

Answer: Option A

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60.Which one of the following is not a possible state for a pointer?

• A. hold the address of the specific object
• B. point one past the end of an object
• C. zero
• D. point to a type

Answer: Option D

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61.Which of the following is illegal?

• A. int *ip;
• B. string s, *sp = 0;
• C. int i; double* dp = &i;
• D. int *pi = 0;

Answer: Option C

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62.What will happen in this code?

int a = 100, b = 200; int *p = &a, *q = &b; p = q;

• A. b is assigned to a
• B. p now points to b
• C. a is assigned to b
• D. q now points to a

Answer: Option B

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63.The correct statement for a function that takes pointer to a float, a pointer to a pointer to a char and returns a pointer to a pointer to a integer is

• A. int **fun(float**, char**)
• B. int *fun(float*, char*)
• C. int ***fun(float*, char**)
• D. int ***fun(*float, **char)

Answer: Option C

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64.What is meaning of following declaration? int(*p[5])();

• A. p is pointer to function.
• B. p is array of pointer to function
• C. p is pointer to such function which return type is array.
• D. p is pointer to array of function. View Answer

Answer: Option B

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65.What is size of generic pointer in c?

• A. 0
• B. 1
• C. 2
• D. Null

Answer: Option C

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66.Void pointer can point to which type of objects?

• A. int
• B. float
• C. double
• D. all of the mentioned

Answer: Option D

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67. When does the void pointer can be dereferenced?

• A. when it doesn't point to any value
• B. when it cast to another type of object
• C. using delete keyword
• D. none of the mentioned

Answer: Option B

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68.The pointer can point to any variable that is not declared with which of these?

• A. const
• B. volatile
• C. both a & b
• D. static

Answer: Option C

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69.A void pointer cannot point to which of these?

• A. methods in c++
• B. volatile
• C. both a & b
• D. static

Answer: Option C

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68.The pointer can point to any variable that is not declared with which of these?

• A. const
• B. volatile
• C. both a & b
• D. static

Answer: Option C

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69.What we can't do on a void pointer?

• A. pointer arithemetic
• B. pointer functions
• C. both of the mentioned
• D. none of the mentioned

Answer: Option A

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70.What is the output of this program?

#include < iostream> using namespace std; int main( ) { char line[100]; cin.getline( line, 100, 't' ); cout << line; return 0 }

• A. 100
• B. t
• C. It will print what we give.
• D. None of the mentioned

Answer: Option C

1. Which of the following statements is correct about Managed Code?

• A.Managed code is the code that is compiled by the JIT compilers.
• B.Managed code is the code where resources are Garbage Collected.
• C.Managed code is the code that runs on top of Windows.
• D.Managed code is the code that is written to target the services of the CLR.

Answer: Option D

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2. Which of the following utilities can be used to compile managed assemblies into processor-specific native code?

• A.gacutil
• B.ngen
• C.sn
• D.dumpbin

Answer: Option B

---

3. Which of the following components of the .NET framework provide an extensible set of classes that can be used by any .NET compliant programming language?

• A.NET class libraries
• B. Common Language Runtime
• C.Common Language Infrastructure
• D.Component Object Model

Answer: Option A

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4. What does the following C#.NET code snippet will print?

int i = 0, j = 0;

label:
i++;
j+=i;
if (i < 10)
{
Console.Write(i +" ");
goto label;
}

• A. Prints 1 to 9
• B. Prints 0 to 8
• C.Prints 2 to 8
• D.Prints 2 to 9

Answer: Option A

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5. Which of the following is the correct output for the C#.NET program given below?

int i = 20 ;
for( ; ; )
{
Console.Write(i + " ");
if (i >= -10)
i -= 4;
else
break;
}

• A.20 16 12 84 0 -4 -8
• B. 20 16 12 8 4 0
• C. 20 16 12 8 4 0 -4 -8 -12
• D.16 12 8 4 0

Answer: Option C

---

6. Which of the following statements is correct?

• A. It is not possible to extend the if statement to handle multiple conditions using the else-if arrangement.
• B.The switch statement can include any number of case instances with two case statements having the same value.
• C.A jump statement such as a break is required after each case block excluding the last block if it is a default statement.
• D.The if statement selects a statement for execution based on the value of a Boolean expression.

Answer: Option D

---

7. A function returns a value, whereas a subroutine cannot return a value.

• A. True
• B. False

Answer: Option A

---

8. How many values is a function capable of returning?

• A.1
• B.0
• C.Depends upon how many params arguments does it use.
• D.Any number of values.

Answer: Option A

---

9. Which of the following CANNOT occur multiple number of times in a program?

• A. namespace
• B.Entrypoint
• C.Class
• D.Function

Answer: Option B

---

10. Which of the following statements is correct?

• A.A constructor can be used to set default values and limit instantiation.
• B. C# provides a copy constructor.
• C.Destructors are used with classes as well as structures.
• D.A class can have more than one destructor.

Answer: Option A

---

11.CLR is the .NET equivalent of _________.

• A.Java Virtual Machine
• B.Common Language Runtime
• C.Common Type System
• D.Common Language Specification

Answer: Option A

---

12.The CLR is physically represented by an assembly named _______.

• A.mscoree.dll
• B.mcoree.dll
• C.msoree.dll
• D.mscor.dll

Answer: Option A

---

13.SOAP stands for __________.

• A.Simple Object Access Program
• B.Simple Object Access Protocol
• C.Simple Object Application Protocol
• D.Simple Object Account Protocol

Answer: Option B

---

14.The ____ language allows more than one method in a single class.

• A.C#
• B.J#
• C.C++
• D.C

Answer: Option A

---

15.In C#, a subroutine is called a ________.

• A.Function
• B.Metadata
• C.Method
• D.Managed code

Answer: Option C

---

16.All C# applications begin execution by calling the _____ method.

• A.Class()
• B.Main()
• C.Submain()
• D.Namespace

Answer: Option B

---

17.A _______ is an identifier that denotes a storage location.

• A.Constant
• B.Reference type
• C.Variable
• D.Object

Answer: Option C

---

18.The reason that C# does not support multiple inheritances is because of ______.

• A.Method collision
• B.Name collision
• C.Function collision
• D.Interface collision

Answer: Option B

---

19._________ are reserved, and cannot be used as identifiers.

• A.Keywords
• B.literal
• C.variables
• D.Identifiers

Answer: Option A

---

20.Boxing converts a value type on the stack to an ______ on the heap.

• A.Bool type
• B.Instance type
• C.Class type
• D.Object type

Answer: Option D

---

21.The character pair ?: is a________________available in C#.

• A.Unary operator
• B.Ternary operator
• C.Decision operator
• D.Functional operator

Answer: Option B

---

22.In C#, all binary operators are ______.

• A.Center-associative
• B.Right-associative
• C.Left-associative
• D.Top-associative

Answer: Option C

---

23.An _______ is a symbol that tells the computer to perform certain mathematical or logical manipulations.

• A.Operator
• B.Expression
• C.Condition
• D.Logic

Answer: Option A

---

24.A _____ is any valid C# variable ending with a colon.

• A.goto
• B.Label
• C.Logical
• D.Bitwise

Answer: Option B

---

25.C# has _______ operator, useful for making two way decisions.

• A.Looping
• B.Functional
• C.Exponential
• D.Conditional

Answer: Option D

---

26.________causes the loop to continue with the next iteration after skipping any statements in between.

• A.Loop
• B.Exit
• C.Break
• D.Continue

Answer: Option D

---

27.An ____ is a group of contiguous or related data items that share a common name.

• A.Operator
• B.Integer
• C.Exponential
• D.Array

Answer: Option D

---

28.Arrays in C# are ______ objects.

• A.Reference
• B.Logical
• C.Value
• D.Arithmetic

Answer: Option A

---

29.Multidimensional arrays are sometimes called _______ Arrays.

• A.Square
• B.Triangular
• C.Rectangular
• D.Cube

Answer: Option C

---

30.______ parameters are used to pass results back to the calling method.

• A.Input
• B.Reference
• C.Value
• D.Output

Answer: Option D

---

31.The formal-parameter-list is always enclosed in _______.

• A.Square
• B.Semicolon
• C.Parenthesis
• D.Colon

Answer: Option C

---

32._______ variables are visible only in the block they are declared.

• A.System
• B.Global
• C.Local
• D.Console

Answer: Option C

---

33.C# does not support _____ constructors.

• A.parameterized
• B.parameter-less
• C.Class
• D.Method

Answer: Option B

---

34.A structure in C# provides a unique way of packing together data of ______ types.

• A.Different
• B. Same
• C.Invoking
• D.Calling

Answer: Option A

---

35.Struct’s data members are ____________ by default.

• A.Protected
• B.Public
• C.Private
• D.Default

Answer: Option C

---

36.A _______ creates an object by copying variables from another object

• A.Copy constructor
• B.Default constructor
• C.Invoking constructor
• D.Calling constructor

Answer: Option A

---

37.The methods that have the same name, but different parameter lists and different definitions is called______.

• A.Method Overloading
• B.Method Overriding
• C.Method Overwriting
• D.Method Overreading

Answer: Option A

---

38.The C# provides special methods known as _____ methods to provide access to data members.

• A.Loop
• B.Functions
• C.Methods
• D.Accessor

Answer: Option D

39.When an instance method declaration includes the abstract modifier, the method is said to be an ______.

---

• A.Abstract method
• B.Instance method
• C.Sealed method
• D.Expression method

Answer: Option A

---

40.The theory of _____ implies that user can control the access to a class, method, or variable.

• A.Data hiding
• B.Encapsulation
• C.Information Hiding
• D.Polymorphism

Answer: Option B

---

41.Inheritance is ______ in nature.

• A.Commutative
• B.Associative
• C.Transitive
• D.Iterative

Answer: Option C

---

42.The point at which an exception is thrown is called the _______.

• A.Default point
• B.Invoking point
• C.Calling point
• D.Throw point

Answer: Option D

---

43.In C#, having unreachable code is always an _____.

• A.Method
• B.Function
• C.Error
• D. Iterative

Answer: Option C

---

44.C# treats the multiple catch statements like cases in a _____________ statement.

• A.If
• B.Switch
• C.For
• D.While

Answer: Option B

---

45.C# supports a technique known as________, which allows a method to specify explicitly the name of the interface it is implementing.

• A.Method Implementaion
• B.Implicit Interface Implementation
• C.Explicit Interface Implementation
• D. IterativeIterative Interface Implementation

Answer: Option C

1. Which one of these lists contains only Java programming language keywords?

• A.class, if, void, long, Int, continue
• B. goto, instanceof, native, finally, default, throws
• C.try, virtual, throw, final, volatile, transient
• D.strictfp, constant, super, implements, do

Answer: Option B

---

2. Which will legally declare, construct, and initialize an array?

• A.int [] myList = {"1", "2", "3"};
• B.int [] myList = (5, 8, 2);
• C.int myList [] [] = {4,9,7,0};
• D.int myList [] = {4, 3, 7};

Answer: Option D

---

3. Which is a reserved word in the Java programming language?

• A. method
• B. native
• C.subclasses
• D.reference
• E.array

Answer: Option B

---

4. Which is a valid keyword in java?

• A. interface
• B. string
• C.Float
• D.unsigned

Answer: Option A

---

5. Which one is a valid declaration of a boolean?

• A.boolean b1 = 0;
• B.boolean b2 = 'false';
• C.boolean b3 = false;
• D.boolean b4 = Boolean.false();

Answer: Option C

---

6. What will be the output of the program?

class BitShift
{
public static void main(String [] args)
{
int x = 0x80000000;
System.out.print(x + " and ");
x = x >>> 31;
System.out.println(x);
}
}

• A.-2147483648 and 1
• B.0x80000000 and 0x00000001
• C.-2147483648 and -1
• D.1 and -2147483648

Answer: Option A

---

7. A function returns a value, whereas a subroutine cannot return a value.

class Equals
{
public static void main(String [] args)
{
int x = 100;
double y = 100.1;
boolean b = (x = y); /* Line 7 */
System.out.println(b);
}
}

• A. true
• B. false
• C.Compilation fails
• D.An exception is thrown at runtime

Answer: Option C

---

8. What will be the output of the program?

class Test
{
public static void main(String [] args)
{
int x=20;
String sup = (x < 15) ? "small" : (x < 22)? "tiny" : "huge" ;
System.out.println(sup);
}
}

• A. small
• B. tiny
• C.huge
• D.Compilation fails

Answer: Option B

---

9. What will be the output of the program?

class Test
{
public static void main(String [] args)
{
int x= 0;
int y= 0;
for (int z = 0; z < 5; z++)
{
if (( ++x > 2 ) && (++y > 2))
{
x++;
}
}
System.out.println(x + " " + y);
}
}

• A. 52
• B. 53
• C. 63
• D. 64

Answer: Option C

---

10. What will be the output of the program?

class Bitwise
{
public static void main(String [] args)
{
int x = 11 & 9;
int y = x ^ 3;
System.out.println( y | 12 );
}
}

• A. 0
• B. 7
• C. 8
• D. 14

Answer: Option D

1. Data science is the process of diverse set of data through?

• A. Organizing data
• B. Processing data
• C. Analysing data
• D. All of the above

Answer: Option D

---

2. Point out the correct statement.

• A. Raw data is original source of data
• B. Preprocessed data is original source of data
• C. Raw data is the data obtained after processing steps
• D. None of the above

Answer: Option A

---

3. How do we perform Bayesian classification when some features are missing?

• A. We integrate the posteriors probabilities over the missing features
• B. We ignore the missing features
• C. We assuming the missing values as the mean of all values
• D. Drop the features completely

Answer: Option A

---

4. The modern conception of data science as an independent discipline is sometimes attributed to?

• A. John McCarthy
• B. Arthur Samuel
• C. William S.
• D. Dennis Ritchie

Answer: Option C

---

5. In Bootstrapping Procedures of Bagging Algorithm, which is TRUE?

• A. Default: Choose all observations and features
• B. Random Subspace: All observations but subsets of features
• C. Random Patches: Subset of features and subsets of observation
• D. All of the above

Answer: Option D

---

6. Which of the following is FALSE related to Feature Selection Techniques?

• A. Filter based methods: Correlation, Anova, Chi-square test
• B. Wrapper based methods: Forward selection, backward elimination, Stepwise selection
• C. Embedded methods: LASSO, Ridge, Elastic Net
• D. None of the above

Answer: Option D

---

7. Which is one of the significant data science skills?

• A. Statistics
• B. Data Visualization
• C. Machine Learning
• D. All of the above

Answer: Option D

---

8. A method used to make vector of repeated values?

• A. read()
• B. data()
• C. rep()
• D. view()

Answer: Option B

---

9. Which of the following step is performed by data scientist after acquiring the data?

• A. Data Replication
• B. Data Integration
• C. Data Cleansing
• D. All of the Mentioned

Answer: Option C

---

10. K- nearest neighbor’s algorithm is based on ______ learning

• A. Supervised
• B. Unsupervised
• C. Association
• D. Correlation

Answer: Option B

---

11. Which of the following statement is true?

• A. The nature of our business problem determines how outliers are used
• B. Outliers is a data point that is significantly close to other data points
• C. Outliers should be identified and removed always from a dataset
• D. Outliers can never be present in the testing dataset

Answer: Option A

---

12. Which of the following function gives information about top level data?

• A. tail
• B. summary
• C. head
• D. None of the above

Answer: Option B

---

13. Which of the following approach should be used if someone can’t fix the variable?

• A. Non-stratify it
• B. Randomize it
• C. Generalize it
• D. None of the above

Answer: Option B

---

14. Which of the following is good way of performing experiments in data science?

• A. Measure variability
• B. Generalize to the problem
• C. Have Replication
• D. All of the above

Answer: Option D

---

15. Choose the correct option for residuals in linear regression?

• A. Residuals are horizontal offset, and the sum of residuals varies between [0,1]
• B. Residuals are horizontal offset, and the sum of residuals can be unity
• C. Residuals are vertical offset, and the sum of residuals is always unity
• D. Residuals are vertical offset, and the sum of residuals is always zero

Answer: Option D

---

16. CNN is mostly used for which type of data

• A. Structured Data
• B. Unstructured Data
• C. Both Structured and Unstructured
• D. None of the above

Answer: Option B

---

17. Which of the following transforms can be performed with data value?

• A. log10
• B. cos
• C. log2
• D. All of the above

Answer: Option D

---

18. Which of the following SGD variants is based on both momentum and adaptive learning?

• A. Adagrad
• B. RMSprop
• C. Adam
• D. Nesterov

Answer: Option C

---

19. What is the work of a Data Architect?

• A. Utilize large data sets to gather information that meets their company’s needs
• B. Work with businesses to determine the best usage of the information yielded from data
• C. Build data solutions that are optimized for performance and design applications
• D. All of the above

Answer: Option C

---

20. A perfect negative correlation is signified by ____________

• A. 1
• B. -1
• C. 2
• D. 0

Answer: Option D

---

21. The applications of Data Science are

• A. Airline Route Planning
• B. Healthcare
• C. Fraud and Risk Detection
• D. All of the above

Answer: Option D

---

22. A correct way to preprocess the data When performing regression or classification is

• A. Normalize the data → PCA → training
• B. PCA → normalize PCA output → training
• C. Normalize the data → PCA → normalize PCA output → training
• D. None of the above

Answer: Option A

---

23. Which of the following uses data on some object to predict values for other object?

• A. Inferential
• B. Predictive
• C. Exploratory
• D. None of the above

Answer: Option B

---

24. Point out the correct statement

• A. Data has only qualitative value
• B. Data has both qualitative and quantitative value
• C. Data has only quantitative value
• D. None of the above

Answer: Option A

---

25. Which of the following is the common goal of statistical modeling?

• A. Inference
• B. Subsetting
• C. Summarizing
• D. None of the above

Answer: Option A

---

26. Which of the following is a branch of statistics?

• A. Descriptive statistics
• B. Industry statistics
• C. Inferential statistics
• D. Both A and C

Answer: Option D

---

27. ______ is the basic data structure of pandas that can be thought of SQL table or a spreadsheet data representation.

• A. Series
• B. List
• C. Dataframe
• D. ndarray

Answer: Option C

---

28. Advantages of Data Science are

• A. Data Science is Versatile
• B. Abundance of Positions
• C. A Highly Paid Career
• D. All of the above

Answer: Option D

---

29. Which of the following is another name for raw data?

• A. Destination data
• B. Eggy data
• C. Machine learning
• D. Secondary data

Answer: Option B

---

30. Disadvantages of Data Science are

• A. Arbitrary Data May Yield Unexpected Results
• B. Data Science is Blurry Term
• C. Large Amount of Domain Knowledge Required
• D. All of the above

Answer: Option D

---

31. Which of the following language is used in Data science?

• A. C
• B. C++
• C. R
• D. Ruby

Answer: Option C

---

32. Which of the following is false?

• A. Sub setting can be used to select and exclude variables and observations
• B. Raw data should be processed only one time.
• C. Merging concerns combining datasets on the same observations to produce a result with more variables
• D. None of the above

Answer: Option B

---

33. Which of the following is correct skills for a Data Scientist?

• A. Probability & Statistics
• B. Machine Learning / Deep Learning
• C. Data Wrangling
• D. All of the above

Answer: Option D

---

34. Which of the following are the Data Sources in data science?

• A. Structured
• B. UnStructured
• C. Both A and B
• D. None of the above

Answer: Option C

---

35. Data can be categorized into ______ groups.

• A. 1
• B. 2
• C. 3
• D. 4

Answer: Option B

---

36. A ________ is a structured representation of data.

• A. database table
• B. functions
• C. data prepration
• D. data frame

Answer: Option D

---

37. Raw data should be processed only one time

• A. True
• B. False
• C. Can be true or false
• D. Can not say

Answer: Option B

---

38. In data frame to compute summary statistics like mean, standard deviation, min and max count etc. for each numerical column ———- function is used.

• A. display()
• B. head()
• C. describe()
• D. sort()

Answer: Option C

---

39. Which of the following focuses on the discovery of (previously) unknown properties on the data?

• A. Data mining
• B. Big Data
• C. Data wrangling
• D. Machine Learning

Answer: Option A

---

40. Which of the following step is performed by data scientist after acquiring the data?

• A. Data Cleaning
• B. Data Integration
• C. Data Replication
• D. All of the above

Answer: Option A

---

41. How many layers Deep learning algorithms are constructed?

• A. 2
• B. 3
• C. 4
• D. 5

Answer: Option B

---

42. RNNs stands for?

• A. Receives neural networks
• B. Report neural networks
• C. Recording neural networks
• D. Recurrent neural networks

Answer: Option D

---

43. Deep learning algorithms are _______ more accurate than machine learning algorithm in image classification.

• A. 33%
• B. 37%
• C. 40%
• D. 41%

Answer: Option D

---

44. ____________ is the process of recognizing patterns by using machine learning algorithm.

• A. Processed Data
• B. Literate Statistical Programming
• C. Pattern Recognition
• D. Likelihood

Answer: Option C

---

45. Data visualization is also an element of the broader _____________.

• A. deliver presentation architecture
• B. data presentation architecture
• C. dataset presentation architecture
• D. data process architecture

Answer: Option B

---

46. Which method shows hierarchical data in a nested format?

• A. Treemaps
• B. Scatter plots
• C. Population pyramids
• D. Area charts

Answer: Option A

---

47. Which of the following is correct Features of DataFrame?

• A. Potentially columns are of different types
• B. Can Perform Arithmetic operations on rows and columns
• C. Labeled axes (rows and columns)
• D. All of the above

Answer: Option D

---

48. Which of the following takes a dict of dicts or a dict of array-like sequences and returns a DataFrame?

• A. DataFrame.from_items
• B. DataFrame.from_records
• C. DataFrame.from_dict
• D. All of the above

Answer: Option A

---

49. __________ is used to test the system.

• A. Training set
• B. Testing data
• C. Both A and B
• D. None of the above

Answer: Option B

---

50. —————— data that depends on data model and resides in a fixed field within a record.

• A. Structured data
• B. Un-Structured data
• C. Semi-Structured data
• D. Scattere

Answer: Option A

51. _________ is one of the key data science skills.

• A. Machine Learning
• B. Statistics
• C. Data Visualization
• D. All of the above

Answer: Option D

---

52. Raw data should be processed only one time.

• True
• False

Answer: Option B

---

53. A data scientist is a job title for an employee or business intelligence (BI) consultant who excels at analyzing data, particularly large amounts of data.

• True
• False

Answer: Option A

---

54. Which among the following is the top most important thing in data science?

• A. Answer
• B. Question
• C. Data
• D. None of the above

Answer: Option B

---

55. Which approach should be used if you can’t fix the variable?

• A. non stratify it
• B. generalize it
• C. randomize it
• D. None of the above

Answer: Option C

---

56. _________ is a good way of performing experiments in data science.

• A. Have Replication
• B. Generalize to the problem
• C. Measure variability
• D. All of the above

Answer: Option D

---

57. Data fishing is sometimes referred to as __________.

• A. Data bagging
• B. Data dredging
• C. Data merging
• D. None of the above

Answer: Option B

---

58. Data dredging, is also known as __________.

• A. Data bagging
• B. Data merging
• C. Data booting
• D. Data snooping

Answer: Option D

---

59. __________ data mining technique is used to uncover patterns in data.

• A. Data merging
• B. Data booting
• C. Data Dredging
• D. All of the above

Answer: Option C

---

60. CLI stands for ________.

• A. Command Line Intercom
• B. Command Line Interface
• C. Command Language Interface
• D. None of the above

Answer: Option B

---

61. _________ is not a CLI command.

• A. delete
• B. clear
• C. rm
• D. None of the above

Answer: Option A

---

62. _________ is a revision control system.

• A. NumPy
• B. Git
• C. Both A and B
• D. None of the above

Answer: Option B

---

63. _______ gives information about top level data.

• A. Head
• B. Tail
• C. Both A and B
• D. None of the above

Answer: Option A

---

64. How many principles of analytical graphs exist?

• A. 3
• B. 5
• C. 7
• D. 6

Answer: Option D

---

65. Boosting is an approach to machine learning based on the idea of creating a highly accurate predictor.

• True
• False

Answer: Option A

---

66. Time deltas are differences in times, expressed in difference units.

• True
• False

Answer: Option A

---

67. The applications of Data Science are __________.

• A. Healthcare
• B. Fraud and Risk Detection
• C. Airline Route Planning
• D. All of the above

Answer: Option D

---

68. The data science applications in healthcare are _______.

• A. Data Science for Medical Imaging
• B. Data Science for Genomics
• C. Drug Discovery with Data Science
• D. All of the above

Answer: Option D

---

69. The main classes in predictive modeling are ________.

• A. Parametric Predictive Modeling
• B. Non-Parametric Predictive Modeling
• C. Both A and B
• D. None of the above

Answer: Option C

---

70. Features of R are ________.

• A. Open-source
• B. Analytical support
• C. Supports extensions
• D. All of the above

Answer: Option D

---

71. Normal Distribution is also known as_______.

• A. Gaussian Distribution
• B. Class Distribution
• C. Permanent Distribution
• D. None of the above

Answer: Option A

---

72. The kernels used in SVM are ___________.

• A. Gaussian Kernel
• B. Polynomial Kernel
• C. Sigmoid Kernel
• D. All of the above

Answer: Option D

---

73. Some of the important libraries of Python that are used in Data Science are _________.

• A. Pandas
• B. Numpy
• C. Both A and B
• D. None of the above

Answer: Option C

---

74. Capping and Flooring would be the most appropriate strategy for performing data cleaning prior to the clustering operation.

• True
• False

Answer: Option A

---

75. Data that summarize all observations in a category are called __________ .

• A. summarized data
• B. frequency data
• C. Both A and B
• D. None of the above

Answer: Option A

---

76. Advantages of Data Science are __________.

• A. Abundance of Positions
• B. A Highly Paid Career
• C. Data Science is Versatile
• D. All of the above

Answer: Option D

---

77. Disadvantages of Data Science are _______.

• A. Large Amount of Domain Knowledge Required
• B. Arbitrary Data May Yield Unexpected Results
• C. Data Science is Blurry Term
• D. All of the above

Answer: Option D

---

78. How do we perform Bayesian classification when some features are missing?

• A. We assuming the missing values as the mean of all values.
• B. We ignore the missing features.
• C. We integrate the posteriors probabilities over the missing features.
• D. Drop the features completely.

Answer: Option C

---

79. Which of the following statement is TRUE?

• A. Outliers should be identified and removed always from a dataset.
• B. Outliers can never be present in the testing dataset.
• C. Outliers is a data point that is significantly close to other data points.
• D. The nature of our business problem determines how outliers are used.

Answer: Option D

---

80. Which of the following statement is False in the case of the KNN Algorithm?

• A. For a very large value of K, points from other classes may be included in the neighborhood.
• B. For the very small value of K, the algorithm is very sensitive to noise.
• C. KNN is used only for classification problem statements.
• D. KNN is a lazy learner.

Answer: Option C

---

81. The robotic arm will be able to paint every corner in the automotive parts while minimizing the quantity of paint wasted in the process. Which learning technique is used in this problem?

• A. Supervised Learning.
• B. Unsupervised Learning
• C. Reinforcement Learning
• D. Both (A) and (B)

Answer: Option C

---

82. Which one of the following statements is TRUE for a Decision Tree?

• A. Decision tree is only suitable for the classification problem statement
• B. In a decision tree, the entropy of a node decreases as we go down a decision tree
• C. In a decision tree, entropy determines purity
• D. Decision tree can only be used for only numeric valued and continuous attributes

Answer: Option B

---

83. How do you choose the right node while constructing a decision tree?

• A. An attribute having high entropy
• B. An attribute having high entropy and information gain
• C. An attribute having the lowest information gain
• D. An attribute having the highest information gain

Answer: Option D

---

84. What kind of distance metric(s) are suitable for categorical variables to find the closest neighbors?

• A. Euclidean distance
• B. Manhattan distance
• C. Minkowski distance
• D. Hamming distance

Answer: Option D

---

85. In the Naive Bayes algorithm, suppose that prior for class w1 is greater than class w2, would the decision boundary shift towards the region R1(region for deciding w1) or towards region R2(region for deciding w2)?

• A. towards region R1
• B. towards region R2
• C. No shift in decision boundary
• D. It depends on the exact value of priors

Answer: Option B

---

86. Which of the following statements is FALSE about Ridge and Lasso Regression?

• A. These are types of regularization methods to solve the overfitting problem
• B. Lasso Regression is a type of regularization method
• C. Ridge regression shrinks the coefficient to a lower value
• D. Ridge regression lowers some coefficients to a zero value

Answer: Option D

---

87. Which of the following is FALSE about Correlation and Covariance?

• A. A zero correlation does not necessarily imply independence between variables
• B. Correlation and covariance values are the same
• C. The covariance and correlation are always the same sign
• D. Correlation is the standardized version of Covariance

Answer: Option B

---

88. In Regression modeling we develop a mathematical equation that describes how, (Predictor-Independent variable, Response-Dependent variable)

• A. one predictor and one or more response variables are related
• B. several predictors and several response variables response are related
• C. one response and one or more predictors are related
• D. All of these are correct

Answer: Option C

---

89. True or False: In a naive Bayes algorithm, when an attribute value in the testing record has no example in the training set, then the entire posterior probability will be zero.

• A. True
• B. False
• C. Can’t determined
• D. None of these

Answer: Option A

---

90. Which of the following is NOT True about Ensemble Techniques?

• A. Bagging decreases the variance of the classifier
• B. Boosting helps to decrease the bias of the classifier
• C. Bagging combines the predictions from different models and then finally gives the results
• D. Bagging and Boosting are the only available ensemble techniques

Answer: Option D

---

91. Which of the following statement is TRUE about the Bayes classifier?

• A. Bayes classifier works on the Bayes theorem of probability
• B. Bayes classifier is an unsupervised learning algorithm
• C. Bayes classifier is also known as maximum apriority classifier
• D. It assumes the independence between the independent variables or features

Answer: Option A

---

92. Which of the following SGD variants is based on both momentum and adaptive learning?

• A. RMSprop
• B. Adagrad
• C. Adam
• D. Nesterov

Answer: Option C

---

93. Which of the following activation function output is zero centered?

• A. Hyperbolic Tangent
• B. Sigmoid
• C. Softmax
• D. Rectified Linear unit(ReLU).

Answer: Option A

---

94. Which of the following is FALSE about Radial Basis Function Neural Network?

• A. It resembles Recurrent Neural Networks(RNNs) which have feedback loops
• B. It uses radial basis function as activation function
• C. While outputting, it considers the distance of a point with respect to the center
• D. The output given by the Radial basis function is always an absolute value

Answer: Option A

---

95. In which of the following situations, you should NOT prefer Keras over TensorFlow?

• A. When you want to quickly build a prototype using neural networks
• B. When you want to implement simple neural networks in your initial learning phase
• C. When you are doing critical and intensive research in any field
• D. When you want to create simple tutorials for your students and friends

Answer: Option C

---

96. Which of the following is FALSE about Deep Learning and Machine Learning algorithms?

• A. Deep Learning algorithms work efficiently on a high amount of data
• B. Feature Extraction needs to be done manually in both ML and DL algorithms
• C. Deep Learning algorithms are best suited for unstructured data
• D. Deep Learning algorithms require high computational power

Answer: Option B

---

97. Which of the following is FALSE for neural networks?

• A. Artificial neurons are similar in operation to biological neurons
• B. Training time for a neural network depends on network size
• C. Neural networks can be simulated on conventional computers
• D. The basic unit of neural networks are neurons

Answer: Option A

---

98. Which of the following logic function cannot be implemented by a perceptron having 2 inputs?

• A. AND
• B. OR
• C. NOR
• D. XOR

Answer: Option D

---

99. Inappropriate selection of learning rate value in gradient descent gives rise to

• A. Local Minima
• B. Oscillations
• C. Slow convergence
• D. All of the above

Answer: Option D

---

100. What kind of distance metric(s) are suitable for categorical variables to find the closest neighbors?

• A. Euclidean distance
• B. Manhattan distance
• C. Minkowski distance
• D. Hamming distance

Answer: Option D

1. Which of the following function is a wrapper for different lattice plots to visualize the data?

• A. levelplot
• B. featurePlot
• C. plotsample
• D. none of the mentioned

Answer: Option B

---

2. Which of the following is performed by Data Scientist?

• A. Define the question
• B. Create reproducible code
• C. Challenge results
• D. All of the mentioned

Answer: Option D

---

3. Point out the wrong statement

• A. Merging concerns combining datasets on the same observations to produce a result with more variables
• B. Data visualization is the organization of information according to preset specifications
• C. Subsetting can be used to select and exclude variables and observations
• D. All of the mentioned

Answer: Option B

---

4. Which of the following approach should be used to ask Data Analysis question?

• A. Find only one solution for particular problem
• B. Find out the question which is to be answered
• C. Find out answer from dataset without asking question
• D. none of the mentioned

Answer: Option B

---

5. Which of the following is a key characteristic of a hacker?

• A. Afraid to say they don’t know the answer
• B. Willing to find answers on their own
• C. Not willing to find answers on their own
• D. All of the mentioned

Answer: Option B

---

6. Which of the following is characteristic of Processed Data?

• A. Data is not ready for analysis
• B. All steps should be noted
• C. Hard to use for data analysis
• D. None of the mentioned

Answer: Option B

---

7. Raw data should be processed only one time.

• A. True
• B. False

Answer: Option B

---

8. Which of the following project is used for calling R products from web?

• A. OpenCPU
• B. OpenDisk
• C. OpenMem
• D. All of the mentioned

Answer: Option A

---

9. Point out the wrong statement.

• A. Shiny is platform for creating interactive programs embedded in to web page
• B. Shiny is invented by R folks
• C. Time required to create data products using shiny is more
• D. All of the Mentioned

Answer: Option C

---

10. Which of the following statement will install shiny?

• A. install.packages(“shiny”)
• B. install.library(“shiny”)
• C. install.lib(“shiny”)
• D. All of the Mentioned

Answer: Option A

---

11. Which of the following can be done by shiny?

• A. Tabbed main panels
• B. Editable data tables
• C. Dynamic UI
• D. All of the Mentioned

Answer: Option D

---

12. Point out the correct statement.

• A. shiny project is a directory containing at least three parts
• B. shiny project is a file containing at least three parts
• C. shiny project consist is a directory containing only one part
• D. None of the mentioned

Answer: Option D

---

13. Which of the following function can interrupt execution and can be called continuously?

• A. browser()
• B. browse()
• C. search()
• D. all of the mentioned

Answer: Option A

---

14. runApp() will run the shiny and open the browser window.

• A. True
• B. False

Answer: Option A

---

15. Which of the following function is for single checkbox widget?

• A. checkboxInput
• B. dateInput
• C. singleboxInput
• D. all of the mentioned

Answer: Option A

---

16. How many components are involved in shiny?

• A. 3
• B. 4
• C. 5
• D. None of the mentioned

Answer: Option D

---

17. All of the styled elements are handled through server.R.

• A. True
• B. False

Answer: Option B

---

18. Point out the wrong statement.

• A. In every situation, the data generating mechanism can create predictors that only have a single unique value
• B. Predictors might have only a handful of unique values that occur with very low frequencies
• C. The function findLinearCombos uses the QR decomposition of a matrix to enumerate sets of linear combinations
• D. All of the mentioned

Answer: Option A

---

19. Which of the following argument is used to set importance values?

• A. scale
• B. set
• C. value
• D. All of the mentioned

Answer: Option A

---

20. Which of the following function can be used to identify near zero-variance variables?

• A. zeroVar
• B. nearVar
• C. nearZeroVar
• D. All of the mentioned

Answer: Option C

---

21. Which of the following function can be used to flag predictors for removal?

• A. searchCorrelation
• B. findCausation
• C. findCorrelation
• D. none of the mentioned

Answer: Option C

---

22. Point out the correct statement.

• A. findLinearColumns will also return a vector of column positions can be removed to eliminate the linear dependencies
• B. findLinearCombos will return a list that enumerates dependencies
• C. The function findLinearRows can be used to generate a complete set of row variables from one factor
• D. none of the mentioned

Answer: Option B

---

23. Which of the following can be used to impute data sets based only on information in the training set?

• A. postProcess
• B. preProcess
• C. process
• D. all of the mentioned

Answer: Option B

---

24. The function preProcess estimates the required parameters for each operation

• A. True
• B. False

Answer: Option A

---

25. Which of the following can also be used to find new variables that are linear combinations of the original set with independent components?

• A. ICA
• B. SCA
• C. PCA
• D. None of the mentioned

Answer: Option A

---

26. Which of the following function is used to generate the class distances?

• A. preprocess.classDist
• B. predict.classDist
• C. predict.classDistance
• D. all of the mentioned

Answer: Option B

---

27. The preProcess class can be used for many operations on predictors.

• A. True
• B. False

Answer: Option A

---

28. Which of the following is correct about regularized regression?

• A. Can help with bias trade-off
• B. Cannot help with model selection
• C. Cannot help with variance trade-off
• D. All of the mentioned

Answer: Option A

---

29. Point out the wrong statement.

• A. Model based approach may be computationally convenient
• B. Model based approach use Bayes theorem
• C. Model based approach are reasonably inaccurate on real problems
• D. All of the mentioned

Answer: Option C

---

30. Which of the following methods are present in caret for regularized regression?

• A. ridge
• B. lasso
• C. relaxo
• D. All of the mentioned

Answer: Option D

---

31. Which of the following method can be used to combine different classifiers?

• A. Model stacking
• B. Model combining
• C. Model structuring
• D. None of the mentioned

Answer: Option A

---

32. Point out the correct statement.

• A. Combining classifiers improves interpretability
• B. Combining classifiers reduces accuracy
• C. Combining classifiers improves accuracy
• D. All of the mentioned

Answer: Option C

---

33. Which of the following function provides unsupervised prediction?

• A. cl_forecast
• B. cl_nowcast
• C. cl_precast
• D. none of the mentioned

Answer: Option D

---

34. Model based prediction considers relatively easy version for covariance matrix

• A. True
• B. False

Answer: Option B

---

35. Which of the following is used to assist the quantitative trader in the development?

• A. quantmod
• B. quantile
• C. quantity
• D. mboost

Answer: Option B

---

36. Which of the following function can be used for forecasting?

• A. predict
• B. forecast
• C. ets
• D. all of the mentioned

Answer: Option B

---

37. Predictive analytics is same as forecasting

• A. True
• B. False

Answer: Option B

---

38. How many components are present in generalized linear models?

• A. 2
• B. 4
• C. 6
• D. None of the mentioned

Answer: Option D

---

39. Point out the wrong statement.

• A. Additive response models don’t make much sense if the response is discrete, or strictly positive
• B. Transformations are often easy to interpret in linear model
• C. Regression models are used to predict one variable from one or more other variables
• D. All of the mentioned

Answer: Option B

---

40. Pick Lazy Algorithm

• A. RNN
• B. CNN
• C. K-Mean
• D. KNN

Answer: Option D

---

41. Sequential Modelling is done on

• A. ANN
• B. RNN
• C. KNN
• D. CNN

Answer: Option B

---

42. Which of the following is performed by Data Scientist

• A. Define the question
• B. Create reproducible code
• C. Challenge results
• D. All of the above

Answer: Option C

---

43. Data has been collected on visitors' viewing habits at a bank's website. Which technique is used to identify pages commonly viewed during the same visit to the website?

• A. Clustering
• B. Association Rules
• C. Classification
• D. Regression

Answer: Option B

---

44. You submit a MapReduce job to a Hadoop cluster and notice that although the job was successfully submitted, it is not completing. What should you do?

• A. Ensure that a DataNode is running
• B. Ensure that the JobTracker is running
• C. Ensure that the NameNode is running
• D. Ensure that the TaskTracker is running

Answer: Option D

---

45. You have been assigned to run a logistic regressionmodel for each of 100 countries, and all the data is currently stored in a PostgreSQL database. Which tool/library would you use to produce these models with the least effort?

• A. MADlib
• B. Mahout
• C. RStudio
• D. HBase

Answer: Option A

---

46. Which of the following of a random variable is a measure of spread?

• A. Empirical mean
• B. Standard deviation
• C. Variance
• D. All of the above

Answer: Option A

---

47. Which of the following testing is concerned with making decisions using data?

• A. Probability
• B. Casual
• C. Hypothesis
• D. None of the above

Answer: Option C

---

48. Which of the following model is usually gold standard for data analysis?

• A. Inferential
• B. Casual
• C. Descriptive
• D. All of the above

Answer: Option A

---

49. Weighted Average is used in

• A. Forecasting
• B. Classification
• C. Regression
• D. All of the above

Answer: Option A

---

50. Will filters work when we do data blending?

• A. True
• B. False

Answer: Option A

51. Which of the following is characteristic of Processed Data?

• A. All steps should be noted
• B. Hard to use for data analysis
• C. Data is not ready for analysis
• D. None of the above

Answer: Option D

---

52. Which of the following diagram is used to view correlation?

• A. Corrgram
• B. Triangle
• C. Boxplot
• D. Histogram

Answer: Option A

---

53. What is data?

• A. Unprocessed information
• B. Set of values
• C. Ideas or objects
• D. All of the choices

Answer: Option D

---

54. What is Big Data?

• A. Data with a large size
• B. Data with the word 'big' in it
• C. Data about people who are big
• D. Data made with a big purpose

Answer: Option A

---

55. What are the 3 main concepts of Data Science?

• A. Data, Science, and Knowledge
• B. Mathematics, Computer Science, and Domain Expertise
• C. Machine Learning, Data Processing, and Statistical Research

Answer: Option B

---

56. Can be described as huge amount of data

• A. Volume
• B. Variety
• C. Value
• D. Velocity
• E. Veracity

Answer: Option A

---

57. Can be described as different formats of data from various sources

• A. Volume
• B. Variety
• C. Value
• D. Velocity
• E. Veracity

Answer: Option B

---

58. Can be described with extracting useful data

• A. Volume
• B. Variety
• C. Value
• D. Velocity
• E. Veracity

Answer: Option C

---

59. Can be described as the high speed of accumulation of data

• A. Volume
• B. Variety
• C. Value
• D. Velocity
• E. Veracity

Answer: Option D

---

60. Can be described as inconsistencies and uncertainty in data

• A. Volume
• B. Variety
• C. Value
• D. Velocity
• E. Veracity

Answer: Option E

---

61. The process of evaluating data through analytical and statistical tools

• A. Data Mining
• B. Data Analysis
• C. Data Exploration
• D. Data Visualization

Answer: Option B

---

62. Which was not mentioned as a latest trend tool

• A. SPSS
• B. Excel
• C. Pentaho
• D. Notepad

Answer: Option D

---

63. This data set does not need to be cleansed

• A. True
• B. False

Answer: Option B

---

64. The following set of data is categorical or numerical data?
red, red, blue, green, red, green, red, red, blue, blue

• A. categorical
• B. numerical

Answer: Option A

---

65. What is the mean of test scores?
?{70, 70, 80, 85, 85, 90, 95, 95, 100, 100}

• A. 87
• B. 85, 95, and 100
• C. 30
• D. 85 and 90

Answer: Option A

---

66. To find the ________ you put all numbers in order from least to greatest and find the number that is in the middle.

• A. Mean
• B. Median
• C. Mode
• D. Range

Answer: Option B

---

67. To find the _________ you add up all the numbers and then divide by how many numbers you have.

• A. Mean
• B. Median
• C. Mode
• D. Range

Answer: Option A

---

68. Plan is the first stage in the Investigative Cycle

• A. True
• B. False

Answer: Option B

---

69. What type of trend is being shown in this visualization?

• A. Positive
• B. Negative

Answer: Option A

---

70. What type of mistake has happened within the data for Sher the Lion?

• A. Missing Data
• B. Incorrect Data
• C. Inaccurate Data

Answer: Option A

---

71. Which of the following is the top most important thing in data science?

• A. answer
• B. question
• C. data
• D. none of the Mentioned

Answer: Option B

---

72. Choose the correct keyword for this
definition:A collection of information about a related topic

• A. Data Set
• B. Trend
• C. Spike

Answer: Option A

---

73. Which of the following characteristic of big data is relatively more concerned to data science ?

• A. Velocity
• B. Variety
• C. Volume
• D. None of the Mentioned

Answer: Option B

---

74. Which of the following term is appropriate to the above figure?

• A. Large Data
• B. Big Data
• C. Dark Data
• D. None of the Mentioned

Answer: Option B

---

75. Which of the following is key characteristic of hacker?

• A. Afraid to say they don’t know the answer
• B. Willing to find answers on their own
• C. Not Willing to find answers on their own
• D. All of the mentioned

Answer: Option B

---

76. Which of the following is one of the key data science skill?

• A. Statistics
• B. Machine Learning
• C. Data Visualization
• D. All of the Mentioned

Answer: Option D

---

77. How do we perform Bayesian classification when some features are missing?

• A. We assuming the missing values as the mean of all values.
• B. We ignore the missing features.
• C. We integrate the posteriors probabilities over the missing features
• D. Drop the features completely

Answer: Option C

---

78. Which of the following statement is False in the case of the KNN Algorithm?

• A. For a very large value of K, points from other classes may be included in the neighborhood.
• B. For the very small value of K, the algorithm is very sensitive to noise
• C. KNN is used only for classification problem statements.
• D. KNN is a lazy learner.

Answer: Option C

---

79. Which of the following statement is TRUE?

• A. Outliers should be identified and removed always from a dataset.
• B. Outliers can never be present in the testing dataset.
• C. Outliers is a data point that is significantly close to other data points.
• D. The nature of our business problem determines how outliers are used.

Answer: Option D

---

80. The robotic arm will be able to paint every corner in the automotive parts while minimizing the quantity of paint wasted in the process. Which learning technique is used in this problem?

• A. Supervised Learning
• B. Unsupervised Learning
• C. Reinforcement Learning
• D. Both (A) and (B)

Answer: Option C

---

81. Which one of the following statements is TRUE for a Decision Tree?

• A. Decision tree is only suitable for the classification problem statement
• B. In a decision tree, the entropy of a node decreases as we go down a decision tree
• C. In a decision tree, entropy determines purity
• D. Decision tree can only be used for only numeric valued and continuous attributes

Answer: Option B

---

82. Which of the following approach should be trying to ask a Data Analysis question?

• A. Finding the question which is to be answered
• B. Finding only one solution for a specific problem
• C. Finding out the answer from the dataset without enquiring any question
• D. None of these

Answer: Option A

---

83. Which of the following is the wrong statement.

• A. Merging concerns combining datasets on the same observations to produce a result with more variables
• B. Sub-setting can be helpful to select and ignore variables and observations
• C. Data visualization is the organization of information according to preset specifications
• D. All of these

Answer: Option C

---

84. What is a significant characteristic of a hacker?

• A. Fearful to say they don’t know the answer
• B. Not Ready and not willing to search for answers on their own
• C. Ready and willing to search for answers on their own
• D. All of these
• E. None of these

Answer: Option C

---

85. What is the characteristic of Processed Data?

• A. Data is not ready for analysis
• B. Difficult to use for data analysis
• C. All steps should be noted
• D. None of these

Answer: Option C

---

86. Which is performed by a Data Scientist?

• A. Defining the question
• B. Creating reproducible code
• C. Challenging the results
• D. All of these
• E. None of these

Answer: Option D

---

87. It’s only one time that the raw data should be processed.

• A. False
• B. True
• C. Partially True

Answer: Option A

---

88. Which of the following is the correct statement.

• A. Preprocessed data is original source of data
• B. Raw data is original source of data
• C. Raw data is the data obtained after processing steps
• D. None of these

Answer: Option B

---

89. Which is one of the significant data science skills?

• A. Statistics
• B. Machine Learning
• C. Data Visualization
• D. All of these
• E. None of these

Answer: Option D

---

90. The modern conception of data science as an independent discipline is sometimes attributed to?

• A. William S
• B. John McCarthy
• C. Arthur Samuel
• D. Satoshi Nakamoto

Answer: Option A

---

91. Which of the following is false?

• A. Subsetting can be used to select and exclude variables and observations
• B. Raw data should be processed only one time
• C. Merging concerns combining datasets on the same observations to produce a result with more variables
• D. None of the above

Answer: Option B

---

92. What is the work of Data Architect?

• A. utilize large data sets to gather information that meets their company's needs
• B. work with businesses to determine the best usage of the information yielded from data
• C. build data solutions that are optimized for performance and design applications
• D. All of the above

Answer: Option C

---

93. Which of the following is correct skills for a Data Scientist?

• A. Probability & Statistics
• B. Machine Learning / Deep Learning
• C. Data Wrangling
• D. All of the above

Answer: Option D

---

94. Which of the following are correct component for data science?

• A. Data Engineering
• B. Advanced Computing
• C. Domain expertise
• D. All of the above

Answer: Option D

---

95. Which of the following is not a part of data science process?

• A. Discovery
• B. Model Planning
• C. Communication Building
• D. Operationalize

Answer: Option C

---

96. Which of the following is not an application for data science?

• A. Recommendation Systems
• B. Image & Speech Recognition
• C. Online Price Comparison
• D. Privacy Checker

Answer: Option D

---

97. We write ______ in front of mean to let Python know that we want to activate the mean function from the Numpy library.

• A. npm
• B. np
• C. ng
• D. ngm

Answer: Option B

---

98. The application of OR techniques involves ______ approach

• A. Individual
• B. Team
• C. Critical
• D. None of the above

Answer: Option B

---

99. Opportunity loss refers to

• A. the expected value of a bad decision
• B. the expected loss from a bad decision
• C. the difference between the actual payoff and the optimal payoff
• D. the regret from not having made a decision

Answer: Option C

---

100. All of the following are steps in the decision-making process EXCEPT

• A. Define the problem
• B. Compute the posterior probabilities
• C. Identify possible outcomes
• D. List payoffs

Answer: Option B

Data Science Basics and Toolbox MCQs

1. Which of the following is a good way of performing experiments in data science?

• A. Measure variability
• B. Generalize the problem
• C. Have Replication
• D. none of the mentioned

Answer: Option D

---

2. Which of the following approach should be used to ask the Data Analysis question?

• A. Find only one solution for a particular problem
• B. Find out the question which is to be answered
• C. Find out the answer from a dataset without asking the question
• D. None of the mentioned

Answer: Option B

---

3. Which of the following step is performed by data scientists after acquiring the data?

• A. Data Cleaning
• B. Data Integration
• C. Data Replication
• D. All of the Mentioned

Answer: Option A

---

4. Which of the following systems records changes to a file over time?

• A. Record Control
• B. Version Control
• C. Forecast Control
• D. None of the mentioned

Answer: Option B

---

5. Which of the following command allows you to update the repository?

• A. push
• B. pop
• C. update
• D. None of the mentioned

Answer: Option A

---

6. Which of the following technique comes under practical machine learning?

• A. Bagging
• B. Boosting
• C. Forecasting
• D. None of the mentioned

Answer: Option B

---

7. Which of the following uses data on some objects to predict values for another object?

• A. Inferential
• B. Exploratory
• C. Predictive
• D. None of the mentioned

Answer: Option C

---

8. Which of the following relationship are usually identified as average effects?

• A. Descriptive
• B. Causal
• C. Predictive
• D. None of the mentioned

Answer: Option B

---

9. Which of the following is a revision control system?

• A. Git
• B. NumPy
• C. Slidify
• D. None of the Mentioned

Answer: Option A

---

10. Which of the following is the correct way of creating a GitHub repository into well labelled commits?

• A. Fork another user's repository
• B. Pop another user's repository
• C. Zip another user's repository
• D. None of the Mentioned

Answer: Option A

---

11. Which of the following is definition of Raw Data?

• A. Set of Measurement on Recorded Values
• B. Processed Data
• C. Easy to use for data analysis
• D. None of the Mentioned

Answer: Option A

---

12. Raw data should be processed only one time.

• A. True
• B. False

Answer: Option B

---

13. 3V's in Big Data

• A. Velocity, Victory, Volume
• B. Volume, Velocity, Variety
• C. Volume, Viscous, Velocity
• D. None of the above

Answer: Option B

---

14. Which of the following are "Measures of Central Tendency"?

• A. Mean, Range, Mode
• B. Mean, Standard Deviation, Range
• C. Mode, Mean, Median
• D. Range, Standard Deviation, Variance

Answer: Option C

---

15. __________ is the standard deviation of a sampling distribution.

• A. Sample error
• B. Sampling error
• C. Simple error
• D. Standard error

Answer: Option D

---

16. What is the order of execution of filters in tableau? 1) Context 2) Traditional 3) Custom 4) Show Me

• A. 1,2,3,4
• B. 2,3,4,1
• C. 3,1,2,4
• D. 4,3,2,1

Answer: Option C

---

17. Positive Correlation:

• A. Above -0.8
• B. Below -0.8
• C. Above 0.8
• D. Below 0.65

Answer: Option C

---

18. Which of the following is one of the key data science skill?

• A. Statistics
• B. Machine learning
• C. Data visualization
• D. All of the mentioned

Answer: Option B

---

19. Which of the following diagram is used to view correlation?

• A. Triangle
• B. Boxplot
• C. Corrgram
• D. Histogram

Answer: Option C

---

20. Which of the following testing is concerned with making decisions using data?

• A. Probability
• B. Hypothesis
• C. Casual
• D. None of the mentioned

Answer: Option B

---

21. Why Machine Learning in Data Science?

• A. For Visualization
• B. For Prediction
• C. For Cleaning
• D. All the above

Answer: Option B

---

22. Will filters work when we do data blending?

• A. True
• B. False

Answer: Option A

---

23. Which of the following technique comes under practical machine learning?

• A. Decision Tree
• B. Data Visualization
• C. Forecasting
• D. None of the mentioned

Answer: Option A

---

24. Tableau can create worksheet-specific filters.

• A. True
• B. False

Answer: Option A

---

25. Weighted Average is used in:

• A. Classification
• B. Regression
• C. Forecasting
• D. Above All

Answer: Option C

---

26. Point out the correct statement:

• A. Machine learning focuses on prediction, based on known properties learned from the training data
• B. Data Cleaning focuses on prediction, based on known properties learned from the training data.
• C. Representing data in a form which both mere mortals can understand and get valuable insights is as much a science as much as it is art
• D. None of the Mentioned

Answer: Option A

---

27. Who is a data scientist?

• A. Mathematician
• B. Statistician
• C. Software programmer
• D. All of the above

Answer: Option D

---

28. Which of the following is performed by Data Scientist?

• A. Define the question
• B. Create reproducible code
• C. Challenge results
• D. All of the Mentioned

Answer: Option C

---

29. Which of the following can be considered as random variable ?

• A. The outcome from the roll of a die
• B. The outcome of flip of a coin
• C. The outcome of exam
• D. All of the mentioned

Answer: Option D

---

30. Which of the following of a random variable is a measure of spread?

• A. Variance
• B. Standard deviation
• C. Empirical mean
• D. All of the mentioned

Answer: Option B

---

---

Data Science Getting Data MCQs

31. Which of the following package is used for reading excel data?

• A. xlsx
• B. xlsc
• C. read. sheet
• D. All of the mentioned

Answer: Option A

---

32. Which of the following data is put into a formula to produce commonly accepted results?

• A. Raw
• B. Processed
• C. Synchronized
• D. All of the mentioned

Answer: Option B

---

33. Which of the following is another name for raw data?

• A. destination data
• B. eggy data
• C. secondary
• D. Machine Learning

Answer: Option B

---

34. Which of the following package is used for reading HTML and XML data?

• A. httr
• B. HTTP
• C. httx
• D. All of the Mentioned

Answer: Option A

---

35. Which of the following is used for specifying character class with meta character?

• A. []
• B. {}
• C. /+
• D. All of the Mentioned

Answer: Option A

---

36. Which of the following transforms can be performed with data value?

• A. log2
• B. cos
• C. log10
• D. All of the mentioned

Answer: Option D

---

37. Which of the following process involves structuring datasets to facilitate analysis?

• A. Data tidying
• B. Data mining
• C. Data booting
• D. All of the Mentioned

Answer: Option A

---

38. Which of the following can be used to view all the tables in memory?

• A. tables
• B. alltable
• C. table
• D. None of the mentioned

Answer: Option A

---

39. Which of the following request can be issued from the httr package?

• A. GET
• B. PUT
• C. DELETE
• D. All of the mentioned

Answer: Option D

---

40. Which of the following signs are used to indicate repetition?

• A. #
• B. *
• C. " “
• D. All of the mentioned

Answer: Option B

---

---

Data Science Statistical Inference, Regression MCQs

41. Sequential Modelling is done on

• A. Analyzing contingency table data
• B. Modeling web traffic hits
• C. Incidence rates
• D. All of the Mentioned

Answer: Option D

---

42. Which of the following form the basis for frequency interpretation of probabilities?

• A. Asymptotic
• B. Symptotics
• C. Asymmetry
• D. All of the Mentioned

Answer: Option A

---

43. Which of the following is correct with respect to residuals?

• A. Positive residuals are above the line, negative residuals are below
• B. Positive residuals are below the line, negative residuals are above
• C. Positive residuals and negative residuals are below the line
• D. All of the Mentioned

Answer: Option A

---

44. Which of the following is also referred to as random variable?

• A. stochast
• B. aleatory
• C. eliette
• D. All of the Mentioned

Answer: Option B

---

45. Which of the following is a property of likelihood?

• A. Ratios of likelihood values measure the relative evidence of one value of the unknown parameter to another
• B. Given a statistical model and observed data, all of the relevant information contained in the data regarding the unknown parameter is contained in the likelihood
• C. The Resultant likelihood is multiplication of individual likelihood
• D. All of the Mentioned

Answer: Option D

---

46. Which of the following inequality is useful for interpreting variances?

• A. Chebyshev
• B. Stautaory
• C. Testory
• D. All of the Mentioned

Answer: Option A

---

47. Which of the following can be useful for diagnosing data entry errors?

• A. hat values
• B. dffit
• C. resid
• D. All of the Mentioned

Answer: Option A

---

48. Which of the following is the oldest multiple testing correction?

• A. Bonferroni correction
• B. Bernoulli correction
• C. Likelihood correction
• D. All of the Mentioned

Answer: Option A

---

49. Point out the wrong statement:

• A. Asymptotics are used for inference usually
• B. Adding squared terms makes it continuously differentiable at the knot points
• C. Adding squared terms makes it twice continuously differentiable at the knot points
• D. None of the Mentioned

Answer: Option C

---

50. Point out the wrong statement:

• A. A random variable is a numerical outcome of an experiment
• B. There are three types of random variable
• C. Continuous random variable can take any value on the real line
• D. None of the Mentioned

Answer: Option B

---

---

Data Science Data Products, Working with NumPy MCQs

51. Point out the correct statement:

• A. shiny project is a directory containing at least three parts
• B. shiny project is a file containing at least three parts
• C. shiny project consist is a directory containing only one part
• D. None of the Mentioned

Answer: Option D

---

52. Which of the following function can interrupt execution and can be called continuously?

• A. browser()
• B. browse()
• C. search()
• D. All of the Mentioned

Answer: Option A

---

53. Point out the correct statement:

• A. Slidify allows embedded code chunks
• B. Slidify presentation cannot be shared easily
• C. Slidify is difficult to use
• D. None of the Mentioned

Answer: Option A

---

54. Which of the following statement generates a html slide deck from index.Rmd?

• A. slidify(index.Rmd")
• B. lib.slidify(index.Rmd")
• C. slidifylib(index.Rmd")
• D. All of the Mentioned

Answer: Option A

---

55. Point out the correct statement:

• A. gvisAnnotationChart returns list of class gvis" and list"
• B. The gvisAreaChart function reads a data.frame and creates text output referring to the Google Visualization API
• C. gvisAreaChart returns list of class gvis" and list"
• D. All of the Mentioned

Answer: Option D

---

56. Which of the following is used for creating interacting tables?

• A. gvisGeoChart
• B. gvisTable
• C. gvisLineChart
• D. All of the Mentioned

Answer: Option B

---

57. Point out the correct statement:

• A. NumPy's main object is the homogeneous multidimensional array
• B. In Numpy, dimensions are called axes
• C. Numpy's array class is called ndarray
• D. All of the Mentioned

Answer: Option D

---

58. Which of the following function stacks 1D arrays as columns into a 2D array?

• A. row_stack
• B. column_stack
• C. com_stack
• D. All of the Mentioned

Answer: Option B

---

59. Point out the wrong statement:

• A. Each universal function takes array inputs and produces array outputs
• B. Broadcasting is used throughout NumPy to decide how to handle disparately shaped arrays
• C. The output of the ufunc is necessarily an ndarray, if all input arguments are ndarrays
• D. All of the Mentioned

Answer: Option D

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60. Which of the following set the floating-point error callback function or log object?

• A. setter
• B. settercall
• C. setterstack
• D. All of the Mentioned

Answer: Option B

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Data Science Data Analysis with Python MCQs

61. Which of the following is implemented on DataFrame to compute the correlation between like-labeled Series contained in different DataFrame objects?

• A. corrwith
• B. corwith
• C. corwit
• D. None of the Mentioned

Answer: Option A

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62. Which of the following takes a dict of dicts or a dict of array-like sequences and returns a DataFrame?

• A. DataFrame.from_items
• B. DataFrame.from_records
• C. DataFrame.from_dict
• D. All of the Mentioned

Answer: Option A

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63. Which of the following library is similar to Pandas?

• A. NumPy
• B. RPy
• C. OutPy
• D. None of the Mentioned

Answer: Option A

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64. Which of the following makes use of pandas and returns data in a Series or Data Frame?

• A. pandaSDMX
• B. freedapi
• C. OutPy
• D. None of the Mentioned

Answer: Option B

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65. Which of the following method is used for transforming a SparseSeries indexed by a MultiIndex to a scipy.sparse.coo_matrix?

• A. SparseSeries.to_coo()
• B. Series.to_coo()
• C. SparseSeries.to_cooser()
• D. None of the Mentioned

Answer: Option A

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66. Which of the following plots are used to check if a data set or time series is random?

• A. Lag
• B. Random
• C. Lead
• D. None of the Mentioned

Answer: Option A

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67. Which of the following is used to generate an index with time delta?

• A. TimeIndex
• B. TimedeltaIndex
• C. LeadIndex
• D. None of the Mentioned

Answer: Option B

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68. Which of the following method produces a data ranking with ties being assigned the mean of the ranks for the group?

• A. rank
• B. dense_rank
• C. partition_rank
• D. None of the Mentioned

Answer: Option A

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69. Which of the following works analogously to the form of the dict constructor?

• A. DataFrame.from_items
• B. DataFrame.from_records
• C. DataFrame.from_dict
• D. All of the Mentioned

Answer: Option A

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70. Which of the following is prominent python "statistics and econometrics library?

• A. Bokeh
• B. Seaborn
• C. Statsmodels
• D. None of the Mentioned

Answer: Option C

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Data Science Data Analysis and Research MCQs

71. Which of the following combination is incorrect?

• A. Continuous "“ euclidean distance
• B. Continuous "“ correlation similarity
• C. Binary "“ manhattan distance
• D. None of the Mentioned

Answer: Option D

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72. Which of the following graph can be used for simple summarization of data?

• A. Scatterplot
• B. Overlaying
• C. Barplot
• D. All of the Mentioned

Answer: Option C

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73. Which of the following system most often don't have postscript viewer?

• A. Windows
• B. Linux
• C. Mac
• D. All of the Mentioned

Answer: Option A

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74. Which of the following is second goal of PCA?

• A. data compression
• B. statistical analysis
• C. data dredging
• D. All of the Mentioned

Answer: Option A

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75. Which of the following can be used for data analysis model?

• A. CRAN
• B. CPAN
• C. CTAN
• D. All of the mentioned

Answer: Option D

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76. Which of the following is correct order of conversion?

• A. .md->.Rmd->.html
• B. .Rmd->.md->.html
• C. .Rmd->.md->.xml
• D. All of the Mentioned

Answer: Option A

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77. Which of the following is useful way to put text, code, data, and output all in one document?

• A. Literate statistical programming
• B. Object Oriented programming
• C. Descriptive programming
• D. All of the Mentioned

Answer: Option A

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78. Which of the following disadvantage does literate programming have?

• A. Slow processing of documents
• B. Code is not automatic
• C. No logical order
• D. All of the Mentioned

Answer: Option A

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79. Which of the following parameter defines line type such as dashed and dotted?

• A. lty
• B. pch
• C. lwd
• D. All of the Mentioned

Answer: Option D

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80. Which of the following way is required to make work reproducible?

• A. keep track of things
• B. Save output
• C. Save data in proprietary formats
• D. None of the Mentioned

Answer: Option A

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Data Science Machine Learning MCQs

81. Which of the following can be used to create sub“samples using a maximum dissimilarity approach?

• A. minDissim
• B. maxDissim
• C. inmaxDissim
• D. All of the Mentioned

Answer: Option B

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82. Which of the following can be used to impute data sets based only on information in the training set. ?

• A. postProcess
• B. preProcess
• C. process
• D. All of the Mentioned

Answer: Option B

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83. Which of the following model model include a backwards elimination feature selection routine?

• A. MCV
• B. MARS
• C. MCRS
• D. All of the Mentioned

Answer: Option B

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84. Which of the following is a categorical outcome?

• A. RMSE
• B. RSquared
• C. Accuracy
• D. All of the Mentioned

Answer: Option C

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85. Which of the following function provides unsupervised prediction?

• A. cl_forecast
• B. cl_nowcast
• C. cl_precast
• D. None of the Mentioned

Answer: Option D

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86. Which of the following library is used for boosting generalized additive models?

• A. gamBoost
• B. gbm
• C. ada
• D. All of the Mentioned

Answer: Option A

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87. Which of the following is characteristic of best machine learning method ?

• A. Fast
• B. Accuracy
• C. Scalable
• D. All of the Mentioned

Answer: Option A

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88. Point out the correct statement:

• A. Asymptotics are used for inference usually
• B. caret includes several functions to pre-process the predictor data
• C. The function dummyVars can be used to generate a complete set of dummy variables from one or more factors
• D. All of the Mentioned

Answer: Option D

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89. Point out the correct statement:

• A. findLinearColumns will also return a vector of column positions can be removed to eliminate the linear dependencies
• B. findLinearCombos will return a list that enumerates dependencies
• C. The function findLinearRows can be used to generate a complete set of row variables from one factor
• D. None of the Mentioned

Answer: Option B

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90. Point out the correct statement:

• A. The difference between the class centroids and the overall centroid is used to measure the variable influence
• B. The Bagged Trees output contains variable usage statistics
• C. Boosted Trees uses different approach as a single tree
• D. None of the Mentioned

Answer: Option A

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91. Which of the following is false?

• A. Subsetting can be used to select and exclude variables and observations
• B. Raw data should be processed only one time
• C. Merging concerns combining datasets on the same observations to produce a result with more variables
• D. None of the above

Answer: Option B

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92. What is the work of Data Architect?

• A. utilize large data sets to gather information that meets their company's needs
• B. work with businesses to determine the best usage of the information yielded from data
• C. build data solutions that are optimized for performance and design applications
• D. All of the above

Answer: Option C

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93. Which of the following is correct skills for a Data Scientist?

• A. Probability & Statistics
• B. Machine Learning / Deep Learning
• C. Data Wrangling
• D. All of the above

Answer: Option D

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94. Which of the following are correct component for data science?

• A. Data Engineering
• B. Advanced Computing
• C. Domain expertise
• D. All of the above

Answer: Option D

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95. Which of the following is not a part of data science process?

• A. Discovery
• B. Model Planning
• C. Communication Building
• D. Operationalize

Answer: Option C

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96. Which of the following is not an application for data science?

• A. Recommendation Systems
• B. Image & Speech Recognition
• C. Online Price Comparison
• D. Privacy Checker

Answer: Option D

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97. We write ______ in front of mean to let Python know that we want to activate the mean function from the Numpy library.

• A. npm
• B. np
• C. ng
• D. ngm

Answer: Option B

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98. The application of OR techniques involves ______ approach

• A. Individual
• B. Team
• C. Critical
• D. None of the above

Answer: Option B

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99. Opportunity loss refers to

• A. the expected value of a bad decision
• B. the expected loss from a bad decision
• C. the difference between the actual payoff and the optimal payoff
• D. the regret from not having made a decision

Answer: Option C

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100. All of the following are steps in the decision-making process EXCEPT

• A. Define the problem
• B. Compute the posterior probabilities
• C. Identify possible outcomes
• D. List payoffs

Answer: Option B

choose the word which expresses the meaning of the same word

1. SACROSANCT

• A. too important
• B. worship
• C. sacrifice
• D. best

Answer: Option A

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2. WHIMSICAL

• A. victorious
• B. swift
• C. fanciful
• D. momentary

Answer: Option C

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3. Candid

• A. Frank
• B. close
• C. dignity
• D. happy

Answer: Option A

---

4. Specification

• A. pointing
• B. Documentation
• C. reasoning
• D. advertising

Answer: Option B

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5. Extradict

• A. addiction
• B. logical
• C. Deport
• D. important

Answer: Option C

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6. Read the passage and answer that follow on the basis of instruction provided in the passage. 1 In country X, democratic, conservative, and justice parties have fought three civil wars in twenty years. TO restore stability an agreement is reached to rotate the top office’s President, Prime Minister, and Army Chief among the parties so that each party controls one and only one office at all times. The three top office holders must each have two deputies, one from each of the other parties. Each deputy must choose a staff composed of equal members of his or her chiefs party and members of the third party. When the Justice party holds one of the top offices, which of the following cannot be true

• A. Some of the staff members within that office are
• B. Some of the staff members within that office are
• C. Two of the deputies within the other offices are
• D. Two of the deputies within the other offices are

Answer: Option A

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7. When the democratic party holds the presidency, the staff of the prime minister's deputies is composed

I. One-fourth of democratic party members II. One-half of justice party members and one-fourth of conservative party members

• A. I only
• B. I and II only
• C. II or III but not both
• D. I and II or I and III

Answer: Option B

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8. Which of the following is allowable under the rules as stated:

• A. More than half of the staff within a given office
• B. Half of the staff within a given office belonging
• C. Any person having a member of the same party as
• D. Half the total number of staff members in all

Answer: Option A

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9. The office of the Army Chief passes from Conservative to Justice party. Which of the following must be fired.

• A. The democratic deputy and all staff members
• B. Justice party deputy and all his or her staff
• C. Justice party deputy and half of his Conservative
• D. The Conservative deputy and all of his or her

Answer: Option A

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10. Complete the sentence with suitable word . Fate smiles ...... those who untiringly grapple with stark realities of life

• A. with
• B. over
• C. on
• D. round

Answer: Option C

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11. The miser gazed ...... at the pile of gold coins in front of him

• A. avidly
• B. Admiringly
• C. thoughtfully
• D. Earnestly

Answer: Option A

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12. Catching the earlier train will give us the ...... to do some shopping.

• A. chance
• B. luck
• C. possibility
• D. occasion

Answer: Option A

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13. I saw a ...... of cows in the field

• A. group
• B. herd
• C. swarm
• D. flock

Answer: Option B

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14. The grapes are now ...... enough to be picked.

• A. ready
• B. mature
• C. ripe
• D. advanced

Answer: Option C

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15. Success in this examination depends ...... hard work alone.

• A. at
• B. over
• C. for
• D. on

Answer: Option A

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16. In the following choose the word which expresses the opposite meaning of the same word ENORMOUS

• A. Soft
• B. Average
• C. Tiny
• D. Weak

Answer: Option C

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17. COMMISSIONED

• A. Started
• B. Closed
• C. Finished
• D. Terminated

Answer: Option D

---

18. EXODUS

• A. Influx
• B. Home-coming
• C. Return
• D. Restoration

Answer: Option A

---

19. RELINQUISH

• A. Abdicate
• B. Renounce
• C. Posses
• D. Deny

Answer: Option C

---

20. EXPAND

• A. Contract
• B. Condense
• C. Congest
• D. Conclude

Answer: Option B

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21. A 20-liter solution contains oil and kerosene in the ratio 3: 5, replace 4 liters of mixture with 4 liters of kerosene what will be the ratio of oil and kerosene?

• A. 3/5
• B. 3/7
• C. 3/8
• D. 1/4

Answer: Option B

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22. Find the value of (999 - 1)(999 - 2)........(999 - n). Where the maximum number of digits in n is 3

• A. 5
• B. 3
• C. 0
• D. 1

Answer: Option C

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23. In a classroom the average height of all the boys was 170 cm. Rahim recently join the class which originally had 20 boys increased the average to 171cm. Then find the height of Rahim?

• A. 190
• B. 185
• C. 191
• D. 181

Answer: Option C

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24. Find the sum of all terms in the series 1, 1/2, 1/4 .....

• A. 3
• B. 2
• C. 5
• D. 4

Answer: Option B

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25. Consider the following series: 3, 4, 6, 9, 13, ____. What comes next?

• A. 15
• B. 16
• C. 17
• D. 18

Answer: Option D

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26. Directions for questions 26 to 30: Select the alternative that logically follows from the two given statements. All scientists are fools. All fools are literates

• A. All literates are scientists
• B. All scientists are literates
• C. No scientists are literates
• D. Both (a) and (b) are correct

Answer: Option B

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27. No apple is an orange. All bananas are oranges

• A. All apples are oranges
• B. Some apples are oranges
• C. No apple is a banana
• D. None of the above

Answer: Option A

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28. All pens are elephants. Some elephants are cats.

• A. Some pens are cats
• B. No pens are cats
• C. All pens are cats
• D. None of the above

Answer: Option D

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29. All shares are debentures. No debentures are deposits.

• A. All shares are deposits
• B. Some shares are deposits
• C. No shares are deposits
• D. None of the above

Answer: Option C

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30. Many fathers are brothers. All brothers are priests

• A. No father is a priest
• B. Many fathers are not priests
• C. Many fathers are priests
• D. Both (b) and (c)

Answer: Option B

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