GraphQL

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GRAPHQL

ASSESSMENT

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

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

{ name: "John" }

query { name: "John" }

query { user(name: "John") }

{ query: { name: "John" } }

2. 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

3. What is GraphQL?

A database management system

A programming language

A query language for APIs

An operating system

4. 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

5. What is the purpose of the introspection in GraphQL?

To improve query performance

To provide documentation about the schema

To validate queries at runtime

To enforce security measures

6. What is the default query type in GraphQL?

Query

Get

Retrieve

7. How does GraphQL handle versioning of APIs?

It automatically updates the schema based on client requests

It relies on the use of custom directives for versioning

It uses a fixed schema with backward-compatible changes

It does not support versioning

8. 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

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. What is the role of the subscriptions field in a GraphQL schema?

To define the types of subscriptions supported by the API

To specify the default values for subscription parameters

To control access permissions for subscriptions

To indicate the version of the GraphQL schema

12. Which of the following is a valid way to provide variables in a GraphQL query?

{ variable: "value" }

$variable: "value"

variable = "value"

variable: "value"

13. 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

14. What does GraphQL stand for?

Graph Query Language

General Query Language

Graphical Query Language

Global Query Language

15. 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

16. What does the term "N+1 problem" refer to in the context of GraphQL?

A query with multiple nested fields

Inefficient loading of related data in a batch

A security vulnerability

Lack of proper documentation

17. What is the purpose of the enum type in GraphQL?

To represent a field that can have multiple types

To define a one-to-many relationship between types

To create a subset of the schema

To represent a set of predefined values

18. How can you perform batching of queries in GraphQL?

By using the @batch directive

By wrapping multiple queries in a single request

By specifying a batch size in the schema

Batching is not supported in GraphQL

19. Who developed GraphQL?

Facebook

Google

Microsoft

Twitter

20. What is the purpose of the fragment keyword in GraphQL?

To define a reusable piece of a query

To group multiple queries together

To define a new scalar type

To include comments in a query

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