Complex Json Test - 45+ MCQs: JSON test: Evaluate Your Knowledge with JSON Questions and Answers

1. What is the purpose of the JSON Schema?

To define the structure and constraints of JSON data

To create a new JSON file

To convert JSON to XML

JSON does not have a schema

2. Which RFC defines the JSON format?

RFC 4627

RFC 791

RFC 675

RFC 3339

3. In JSON, how is a string represented?

Enclosed in double quotes

Enclosed in single quotes

No quotes needed

Enclosed in backticks

4. How can you include a nested object within a JSON object?

Enclose the nested object in square brackets

Enclose the nested object in curly braces

Use single quotes for the nested object

Nested objects are not allowed in JSON

5. What is the purpose of the JSON Merge Patch format?

To merge multiple JSON files into one

To represent patches for updating JSON documents

To compress JSON data for faster transmission

JSON Merge Patch is not a valid JSON format

6. In JSON, how is an object key represented?

As plain text

Enclosed in single quotes

Enclosed in double quotes

As is, without any special symbols

7. How is a comment added in a JSON file?

// This is a comment

# This is a comment

/* This is a comment */

' This is a comment

8. Which data type is not supported in JSON?

Number

Boolean

Undefined

Date

9. What does the term 'serialization' mean in the context of JSON?

Converting an object to a JSON-formatted string

Converting a JSON string to an object

Creating a new JSON file

Serializing is not applicable in JSON

10. Which of the following is a valid JSON array?

[1, 'apple', true, null]

{1, 'apple', true, null}

(1, 'apple', true, null)

[1; 'apple'; true; null]

11. How is null represented in JSON?

null

undefined

void

nil

12. How can you represent a null value in a JSON file?

null

nil

undefined

NaN

13. Which method is used to stringify a JavaScript object into a JSON-formatted string?

JSON.stringify()

JSON.parse()

object.stringify()

stringify.JSON()

14. What is the significance of the MIME type 'application/json'?

It indicates that the content is in JSON format

It specifies a compressed JSON file

It is used for JSON-based web pages

MIME types do not apply to JSON

15. Which method is used to check if a key exists in a JSON object in JavaScript?

keyExists()

JSON.containsKey()

Object.hasOwnProperty()

json.isKeyPresent()

16. In JSON, how is a number represented?

As plain text

Enclosed in double quotes

As is, without any special symbols

Enclosed in single quotes

17. How is a JSON object different from a JavaScript object?

There is no difference; they are the same

JSON objects have a schema, JavaScript objects do not

JavaScript objects can have functions as values, JSON objects cannot

JSON objects cannot contain arrays, JavaScript objects can

18. How is a JSON array different from a JSON object?

Arrays are ordered, objects are unordered

Arrays can only contain numbers, objects can only contain strings

Objects are ordered, arrays are unordered

There is no difference between arrays and objects in JSON

19. In JSON, how is a boolean value 'true' represented?

True

Yes

The letter 'T' in uppercase

20. What is the purpose of a JSON array?

To represent a key-value pair

To store a sequence of values

To define object properties

Arrays are not used in JSON

21. In JSON, what is the purpose of an array?

To store key-value pairs

To represent a sequence of values

To define object properties

Arrays are not used in JSON

22. What is the purpose of the JSON Lines format?

To represent multi-line JSON strings

To separate JSON objects with newlines

To create a JSON-based chat system

JSON Lines is not a valid format

23. In JSON, what is the purpose of a boolean value?

To represent text

To represent true/false conditions

To define object properties

Booleans are not used in JSON

24. Which symbol is used to separate key and value pairs in a JSON object?

25. What does JSON stand for?

JavaScript Object Notation

Java Structured Object Notation

JSON Structured Object Notation

JavaScript Structured Object Notation

26. What does JSON.parse() do in JavaScript?

Converts a JSON string to an object

Converts an object to a JSON string

Creates a new JSON file

No such function in JavaScript

27. Which data types can be used in JSON?

String, Number, Boolean, Array, Object, Null

Integer, Float, Boolean, List, Dictionary, None

Text, Numeric, TrueFalse, Set, Hash, Undefined

Character, Decimal, True, False, Void, Empty

28. What is the purpose of the JSON-LD (JSON for Linked Data) format?

To represent JSON data with linked references

To create a JSON-based language definition

To compress JSON data for storage

JSON-LD is not a valid JSON format

29. What is the purpose of the JSON Web Token (JWT)?

To encode and decode JSON data

To create animated JSON images

To secure communication between parties

JSON does not support tokens

30. Which method is used to pretty-print a JSON string in JavaScript?

JSON.stringify()

JSON.parse()

json.print()

stringify.JSON()

JSON MCQ Test 2