Explore topic-wise MCQs in Javascript.

This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Javascript knowledge and support exam preparation. Choose a topic below to get started.

1.

WHERE_DOES_THE_DNS_LOOKUP_DIRECT_TO_??$

A. Browser
B. Client
C. Server
D. DNS Server
Answer» E.
2.

WHICH_OF_THE_FOLLOWING_CONSTANTS_HOLD_THE_VALUE_2??$

A. TYPE_NAVIGATE
B. TYPE_RELOAD
C. TYPE_BACK_FORWARD
D. TYPE_RESERVED
Answer» D. TYPE_RESERVED
3.

Where does the DNS Lookup direct to ?$

A. Browser
B. Client
C. Server
D. DNS Server
Answer» E.
4.

Which of the following constants hold the value 2?

A. TYPE_NAVIGATE
B. TYPE_RELOAD
C. TYPE_BACK_FORWARD
D. TYPE_RESERVED
Answer» D. TYPE_RESERVED
5.

What does the constant TYPE_BACK_FORWRD indicate?

A. Navigation via browser history
B. Navigation via user request
C. Navigation via URL
D. None of the mentioned
Answer» B. Navigation via user request
6.

What is the purpose of the constant TYPE_RELOAD?

A. Reload performed
B. Reload not performed
C. Reload must be performed
D. None of the mentioned
Answer» B. Reload not performed
7.

Which of the following constants has the value 255?

A. TYPE_NAVIGATE
B. TYPE_RELOAD
C. TYPE_BACK_FORWARD
D. TYPE_RESERVED
Answer» E.
8.

How many constant values can the property type be represented?

A. 2
B. 3
C. 4
D. 5
Answer» D. 5
9.

How can one access the redirectCount property?

A. navigation.redirectCount
B. performance.navigation.redirectCount
C. performance.redirectCount
D. redirectCount
Answer» C. performance.redirectCount
10.

Where does the DNS reply go to in a single HTTP redirect?

A. Browser
B. Client
C. Server
D. DNS Server
Answer» B. Client
11.

Why are HTTP redirects significant?

A. TCP connection available
B. Complete roundtrip absent
C. Complete roundtrip present
D. None of the mentioned
Answer» C. Complete roundtrip present
12.

How many read-only attributes are present in the navigator object?

A. 1
B. 2
C. 3
D. 4
Answer» C. 3