GraphQL

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GRAPHQL

ASSESSMENT

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

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1. 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

2. 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

3. 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

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 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

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

Query

Mutation

Subscription

Directive

7. 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

8. 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

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

select

query

fetch

retrieve

10. Which HTTP method is commonly used with GraphQL?

GET

POST

PUT

DELETE

11. 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

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

{ name: "John" }

query { name: "John" }

query { user(name: "John") }

{ query: { name: "John" } }

13. 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

14. What is the default query type in GraphQL?

Query

Get

Retrieve

15. 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

16. What is GraphQL?

A database management system

A programming language

A query language for APIs

An operating system

17. 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

18. In GraphQL, what is a schema?

A type of database

A query

A way to structure data

A programming language

19. Who developed GraphQL?

Facebook

Google

Microsoft

Twitter

20. 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

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