Practice Json Multiple Choice Questions with Answers Quiz-2

Q.1.

JSON strings have used in___.

Double quote
Single quote
Both 1 & 2
None of These

Q.2.

What is the common usage of Json on modern websites?

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

Q.3.

Quale funzione in PHP si usa per convertire i dati in un formato JSON ?

php_encode
php_string_to_json
php_decode
json_codify

Q.4.

Which of the following JSON feature ensures communication between two applications designed in different programming languages?

Extensibility
Scalability
Interoperability
Reusability

Q.5.

Which of the following Protocol services uses JSON?

SMTP
HTTP
TCP/IP
Web Protocol

Q.6.

Which of the following code will throw an error?

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

Q.7.

Is JSON Case sensitive ?

Yes
No

Q.8.

What are two main structures compose JSON?

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

Q.9.

Which of the following is not a type in JSON?

date
Object
Array
string

Q.10.

SELECT nameFROM instructorWHERE salary IS NOT NULL;Selects

a) Tuples with null value
b) Tuples with no null values
c) Tuples with any salary
d) All of the mentioned
b) Tuples with no null values

Q.11.

A _____ indicates an absent value that may exist but be unknown or that may not exist at all.

a) Empty tuple
b) New value
c) Null value
d) Old value

Q.12.

Which is the file extension of JSON?

.js
.json
.java

Q.13.

Which of the following is the fastest JavaScript parser?

Acron
JSLint
Esprima
Traceur

Q.14.

Can you use a double quote inside a JSON string?

Yes, if you use the ascii code.
Yes, you can use it without any special treatment
Yes, if it is escaped like ( \” )
No, you should use single quotes

Q.15.

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.

Q.16.

Which of these is proper a JSON array?

{ “letters” : [ “a”, “b”, “c”; ] }
{ ‘letters’ : {“a”, “b”, “c” } }
{ “letters” : [ a, b, c ] }
{ “letters” : [ “a”, “b”, “c” ] }

Q.17.

Is whitespace matter in JSON?

No, it will be stripped out.
Yes, both inside and outside of strings
Yes, only within strings
Yes, only outside of strings

Q.18.

Which of these is supported as a JSON Value type?

Infiniti
Null
Undefined
NaN

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