GraphQL

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GRAPHQL

ASSESSMENT

(YOU HAVE ONLY 30 MINUTES TO COMPLETE THIS PART [20 Questions])

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1. What is the purpose of the on keyword in a GraphQL fragment?

To filter data based on a condition

To specify the type on which the fragment can be used

To join multiple fragments together

To create an alias for a field

2. Which keyword is used to alias fields in a GraphQL query?

alias

with

rename

3. What is the purpose of the @deprecated directive in GraphQL?

To mark a field or enum value as deprecated

To enable caching for a specific query

To define default values for fields

To specify the data type of a field

4. How does GraphQL handle errors in a response?

By ignoring errors and returning partial data

By automatically fixing errors in the query

By returning a well-defined error format

By terminating the entire request on the first error

5. How does GraphQL handle circular references in a schema?

By automatically resolving the circular references

By throwing an error and preventing circular references

By requiring the use of custom directives to handle circular references

Circular references are not allowed in GraphQL

6. What is the purpose of the fragments keyword in a GraphQL query?

To define a reusable piece of a query

To group multiple queries together

To include comments in a query

To exclude certain fields from the response

7. Which HTTP method is commonly used with GraphQL?

GET

POST

PUT

DELETE

8. Which of the following is a valid scalar type in GraphQL?

Date

Object

Function

Promise

9. How can you document a GraphQL schema?

Using comments in the schema definition

By creating a separate documentation file

By using the @doc directive

Documentation is not supported in GraphQL

10. What is the purpose of the union type in GraphQL?

To represent a field that can have multiple types

To perform set operations on queries

To define a one-to-many relationship between types

To create a subset of the schema

11. Who developed GraphQL?

Facebook

Google

Microsoft

Twitter

12. In GraphQL, what is the purpose of directives?

To define custom scalar types

To conditionally include or skip fields

To create mutations

To specify the schema version

13. GraphQL, how are arguments passed to a field?

Using parentheses ()

Using square brackets []

Using curly braces {}

Using angle brackets <>

14. Which type of operation in GraphQL is used for real-time data updates?

Query

Mutation

Subscription

Directive

15. What is the role of the context in GraphQL resolvers?

It defines the structure of the schema

It provides a way to share information between resolvers

It specifies the data types of fields

It controls the access permissions

16. Which of the following is a valid GraphQL query syntax?

{ name: "John" }

query { name: "John" }

query { user(name: "John") }

{ query: { name: "John" } }

17. What is the purpose of the @client directive in GraphQL?

To indicate that the field should be resolved on the client side

To specify the data type of a field

To mark a field as deprecated

To include comments in a query

18. What is the purpose of the __typename field in GraphQL?

To specify the name of the query

To indicate the type of the current object

To define custom scalar types

To exclude a field from the response

19. What is the purpose of the schema stitching in GraphQL?

To merge multiple GraphQL schemas into a single schema

To split a large schema into smaller schemas

To create a schema dynamically at runtime

To validate the schema against a predefined standard

20. How does GraphQL handle batched mutations?

By executing mutations sequentially

By parallelizing the execution of mutations

By limiting the number of mutations in a single request

Batched mutations are not supported in GraphQL

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