GraphQL

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GRAPHQL

ASSESSMENT

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

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

Query

Mutation

Subscription

Directive

2. Which of the following is NOT a scalar type in GraphQL?

String

Int

List

Boolean

3. 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

4. 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

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 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. 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

8. How can you secure a GraphQL API?

By using HTTPS for communication

By implementing authentication and authorization

By limiting the depth and complexity of queries

All of the above

9. 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

10. 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

11. What is GraphQL?

A database management system

A programming language

A query language for APIs

An operating system

12. What is the purpose of the relay package in GraphQL?

To handle pagination and connections in a standardized way

To provide authentication for GraphQL queries

To optimize query performance

To enable offline support for GraphQL queries

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

{ name: "John" }

query { name: "John" }

query { user(name: "John") }

{ query: { name: "John" } }

14. Which of the following is a valid GraphQL subscription operation?

subscribe { newMessages }

mutation { subscribe(newMessages) }

query { subscribe(newMessages) }

subscription { onNewMessage }

15. 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

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

{ variable: "value" }

$variable: "value"

variable = "value"

variable: "value"

17. 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

18. Which of the following is a reserved keyword in GraphQL?

select

query

fetch

retrieve

19. What is a resolver in GraphQL?

A function that defines how to retrieve data for a field

A type of query

A security measure

A data validation rule

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

Date

Object

Function

Promise

5 out of 4

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