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 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

2. 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

3. 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

4. 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

5. Who developed GraphQL?

Facebook

Google

Microsoft

Twitter

6. What is a mutation in GraphQL?

A query that fetches data

A query that modifies data

A type of subscription

A way to create new schemas

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 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. 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

10. 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

11. What does GraphQL stand for?

Graph Query Language

General Query Language

Graphical Query Language

Global Query Language

12. 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

13. 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

14. 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

15. Which HTTP method is commonly used with GraphQL?

GET

POST

PUT

DELETE

16. What is the default query type in GraphQL?

Query

Get

Retrieve

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

select

query

fetch

retrieve

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

{ variable: "value" }

$variable: "value"

variable = "value"

variable: "value"

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

String

Int

List

Boolean

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

Using parentheses ()

Using square brackets []

Using curly braces {}

Using angle brackets <>

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