Json(Computer Science ) Questions and answers for exam Preparation

Question 1. Which of the following code will throw an error?

JSON.parse(‘{}’);
JSON.parse(null);
JSON.parse(undefined);
JSON.parse(‘[]’);

Explanation:-

Answer: Option C. -> JSON.parse(undefined);

Question 2. Which of the following Protocol services uses JSON?

SMTP
HTTP
TCP/IP
Web Protocol

Explanation:-

Answer: Option B. -> HTTP

Question 3. Is JSON Case sensitive ?

Yes
No

Explanation:-

Answer: Option A. -> Yes

Question 4. What are two main structures compose JSON?

Arrays and Objects
Keys and values
Class and Objects
None of above

Explanation:-

Answer: Option B. -> Keys and values

Question 5. Which of these is correct about the JSON standard?

It is an open standard
It is privately developed
It requires a license to use
none of the above

Explanation:-

Answer: Option A. -> It is an open standard

Question 6. In modern websites what is the common usage for JSON?

To store information remotely.
To send and receive bits of data.
To store information locally.
none of the above

Explanation:-

Answer: Option B. -> To send and receive bits of data.

Question 7. Which of the following is the limitation of JSON?

Too many data types
Complicated debugging
Support for only C
No limit on arrays and objects

Explanation:-

Answer: Option B. -> Complicated debugging

Question 8. What is the common usage of Json on modern websites?

To store information locally
To store information remotely
To send and receive bits of data
All of the Above

Explanation:-

Answer: Option C. -> To send and receive bits of data

Question 9. JSON strings have used in___

Double quote
Single quote
Both 1 & 2
None of These

Explanation:-

Answer: Option A. -> Double quote

Question 10. Which is correct format of writting JSON name/value pair

'name : value'
name = 'value'
name = "value"
"name" : "value"

Explanation:-

Answer: Option D. -> "name" : "value"