JSON MCQ Questions Answers

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Sample JSON MCQ

JSON name/value pair is written as

name = "value"

name = 'value'

name' : 'value'

"name" : "value"

Answer:
"name" : "value"

JSON multiple choice questions List

1. What is supported by YAML but not supported by JSON?

2. The JSON structure features nested objects and arrays. Sometimes the data containing these features exists in relational databases. How is the relational structure different that JSON?

3. What characters are used to define an object?

4. Which code is a valid JSON equivalent of the key/value pair shown that also preserves the data type? variance: -0.0823

5. What technique can you use to safely encode very large numbers?

6. What is the only valid whitespace character within a string that does not require an escape character?

7. When parsing JSON, "caching" is a method used to _.

8. If an object key contains spaces, how can you access its value in JavaScript?

9. How does JSON represent truth, falsity and nullness?

10. In JSON, a set of brackets ([]) is used to denote _, whereas curly braces ({}) denote _.

11. What is the minimum number of values in an array?

12. How are the values in an array separated?

13. What JavaScript method is used to load JSON data?

14. What two nonnumerical characters can numbers contain?

15. Does JSON support signed numbers?

16. What is the recommended term used to refer to multiple resources?

17. What is the maximum number of key/value pairs that JSON supports?

18. With what character should object keys be enclosed?

19. Can you assume the order of keys in an object?

20. What is the purpose of JSON?

21. What character cannot be part of string within JSON without additional formatting?

22. What is the official MIME type for JSON?

23. What characters are used to enclose an array?

24. What technique can be used to represent complex objects with JSON?

25. What values can arrays contain?

26. With which programming language is JSON best used?

27. How are values separated in JSON?

28. How would you make the following string valid in JSON? "name": 'bb-8'

29. How should comments be formatted in JSON?

30. Which key format is valid JSON?

31. What are valid values in JSON?

32. What data structure do you use to encode ordered information?

33. How should a date value be stored in JSON?

34. Which number types are available in javascript but not supported in json?

35. If a string contains line breaks, what should you do?

36. What character separates keys from values?

37. With what character should key/value pairs be separated?

38. Which code is valid JSON equivalent of the key/value pair shown that also preserves the data type?

39. Which data format is a JSON schema written in?

40. Which key name is used to specify data type in a JSON schema?

41. Which code uses the correct JSON syntax for a key/Value pair containing a string?

42. Which reference to the Unicode character U+1F602 complies with the JSON standard?

43. Which code uses the correct JSON syntax for encoding a key/value pair with a null value?

44. How do you assign a number value in JSON?

45. When you need to set the value of a key in JSON to be blank, what is the correct syntax for the empty value?

46. Which is ignored by JSON but treated as significant by YAML?

47. Which array is valid JSON?

48. How is a true boolean value represented in JSON?

49. When building dynamic web applications using AJAX, developers originally used the _ data format, which has since been replaced by JSON.

50. Why do so many APIs use JSON?

51. Which element is added to the DOM to create a JSON-P request?

52. Which code is a valid JSON equivalent of the key/value pair shown that also preserves the data type? constant: 6.022E23

53. What characters denote strings in JSON?

54. What tool might you use to validate your JSON?

55. What’s wrong with this JavaScript? JSON.parse({"first": "Sarah", "last": "Connor"}) ;

56. How do you encode a date in JSON?

57. Which is an invalid JSON value?

58. Which is supported by YAML but not supported by JSON?

59. Which whitespace characters should be escaped within a string?

60. Can trailing commas be used in objects and arrays?

61. Which JavaScript method converts JSON to a JavaScript value?

62. Which value is supported in the JSON specifications?

63. What does JSON with padding (JSON-P) use to make a request?

64. If you need to store the loggedIn status of a user in JSON as a boolean, what is the correct syntax?

65. What data type is represented by the value of the key/value pair shown? loggedIn: true

66. How do you store several paragraphs of text as a string in JSON?

67. Which key name is used to specify properties that must be included for JSON to be valid?

68. Which date type is part of the JSON standard?

69. What character do you specify before a JSON control character when you want to use that control characters as a literal part of a string?

70. Which code uses the correct JSON syntax to encode the key/value pair shown?accountNum: '000605802'

71. Which term is commonly used to refer to converting data to JSON?

72. Which data type is NOT part of JSON standard?

73. Which JavaScript method converts a JavaScript value to Json?

74. By convention, what name is used for the first key in a JSON schema?

75.

Which of the following is/are not true with regard to JSON?

76.

In order to find all the elements in an XML document and all the members of a JSON structure, which of the following JSONPath syntaxes is correct?

77.

Which of the following is the correct syntax for declaring a module> tag in JSON?

78.

This question is based upon the figure shown below

In order to find the price of everything in the store, which of the JSONPath codes will you use?

79.

Which of the following JSONPath syntaxes will you use in order to filter all books where price is less than $10?

80.

State whether true or false. JSONRequest allows the connection when the Content-Type in both directions is an application/jsonrequest.

81.

which of the following is a valid jsonpath expression?

82.

Which of the following properties should be declared first in order to define a schema from an instance?

83.

Which syntax is correct for the jsonPath() function during the implementation of JSONPath?

84.

Which of the following schema properties does not need to be validated by JSON validators?

85.

Which of the following features of JSON has the property of exemption from the same origin policy?

86.

This questions is based upon the figure shown below

In order to find the last book, which of the JSONPath codes will you use?

87.

This questions is based upon the figure shown below

In the above code snippet, what is the purpose of declaring the JSONRequest.post?

88.

While using JSONRequest.cancel, what will happen to the request if it is still in the outgoing message queue?

89.

Which of the following statements is/are not correct about the JSON-RPC?

90.

Which of the following elements of JSONPath can be used to apply the filter(script) expression?

91.

What is the significance of the arrow before the following code in JSON?

--> { "method": "echo", "params": ["Hello JSON-RPC"], "id": 1}

92.

Which of the following parameters can be passed in the JSONRequest.get request?

93.

What does the [start:end:step] element of JSONPath signify?

94.

Which of the following JSONPath elements represents the root object/element?

95.

Which of the following parameters can be passed in the JSONRequest.post request?

96.

Which of the following parameters of JSONRequest hold/s the information of implicit authentication and cookies during post operation?

97.

Which of the following properties form part of the response to a JSON-RPC method invocation?

98.

Which of the following parameter values cannot be serialized in JSONRequest?

99.

Which of the following correctly describes the term tuple typing in JSON Schema?

100.

Which of the following methods is/are provided by JSONRequest?

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JSON:

JSON stands for JavaScript Object Notation. JSON is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate. JSON is based on a subset of the JavaScript Programming Language, Standard ECMA-262 3rd Edition - December 1999. JSON is a text format that is completely language-independent but uses conventions that are familiar to programmers of the C-family of languages (C, C++, JavaScript, and so on). These properties make JSON an ideal data-interchange language.

What are JSON objects?

JSON objects are simply unordered collections of name-value pairs. In other words, a JSON object is used to store data in a structured format.

JSON value type:

JSON values can be one of the following data types:

A string
A number
An object (an unordered collection of key-value pairs)
An array (an ordered sequence of values)
A boolean (true or false)

How to create JSON ordered pairs?

To create an ordered pair in JSON, you must use the "pair" keyword. The format for creating an ordered pair is as follows:

pair :
first :
second :

How to quickly create JSON text?

There are many ways to create JSON text. One way is to use a string variable and the other way is to use a JSON object.

JSON data:

It is a format that is used to store data in a JavaScript Object Notation (JSON) file. These files are often used in web applications to store data that is needed by the application, such as user settings or application configuration. JSON data can be stored in a text file or a database and can be read by any programming language that supports JSON parsing.

What is a JSON string?

These strings are used to store and transmit data. They are typically used to transmit data between a server and a web application. JSON strings are enclosed in double quotation marks and can contain any valid JSON value, including numbers, strings, arrays, objects, and even other JSON strings. JSON strings can be created using the json_encode() function in PHP, or they can be created manually by surrounding a value with double quotation marks. Quizack has the biggest collection of mcq on JSON for all the applicants who wish to pass their test or interview.

JSON array:

A JSON array is an ordered collection of values. An array begins with "[" (left bracket) and ends with "]" (right bracket). Values are separated by "," (comma).

How to parse JSON string?

To parse a JSON string, you need to use the JSON.parse() method. This method parses a JSON string and returns an object.

What are java strings?

Java strings are simply a sequence of characters. A string can be created using double quotes:

"this is a string"

Javascript object:

In JavaScript, an object is a collection of unordered properties. Properties in objects are usually defined using the syntax "property_name": "property_value". However, you can also use the dot notation to access and set properties.

What is ASCII code?

ASCII code is a code used to represent characters in digital devices. ASCII stands for American Standard Code for Information Interchange. It was originally developed by ANSI (American National Standards Institute) in 1963. ASCII codes represent text in computers, telecommunications equipment, and other devices. Most modern character-encoding schemes are based on ASCII, although they support many additional characters.

JSON elements:

JSON elements are essentially pieces of data that are stored in a JSON file. They can be anything from numbers, strings, objects, or even arrays.

What are JSON procedures?

JSON procedures are a set of rules or instructions that are followed in order to complete a task. In computer programming, a procedure is often written as a sequence of commands or steps. These procedures can be executed by computers in order to perform specific tasks or functions.

The file extension of JSON:

File extension of JSON is the .json. This file format was created by Douglas Crockford. JSON is a text-based, human-readable format for representing simple data structures and associative arrays (called objects).

Correct MIME type:

The correct MIME type for JSON is application/json. JSON is a text-based format that is easy for humans to read and write, and easy for machines to parse and generate. JSON can be used in many different ways: as a simple data format that is easy to read and write; as an efficient binary data format; or as a reliable message format. JSON is also a good choice for storing data in databases because it is easy to query and update.

JSON parsing:

Parsing JSON is the process of converting a JSON string into a JavaScript object.

This can be done using the JSON.parse() method in JavaScript, which parses a string and returns a JavaScript object.

What are the main structures compose JSON?

JSON's main structures are objects, arrays, and key-value pairs. Objects are composed of keys and values, where keys are strings and values can be either strings or other objects. Arrays are ordered lists of values, where each value can be either a string or another object.

Quizack and JSON:

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