What does the 'WWW' prefix in a URL usually signify? MCQ with Answer and Explanation

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What does the 'WWW' prefix in a URL usually signify?

A. The protocol used

B. World Wide Web, indicating the resource is on the web

C. The server hosting the site

D. The port number

Answer: Option B

Solution (By JKSSB Mock Tests)

The 'www' prefix is a common subdomain indicating that the resource is part of the World Wide Web, though it is not required and many sites omit it.

This question belongs to: Computer Internet and Web Technologies

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Question #1

Which HTTP header field or mechanism is used by a web server to set a tracking cookie on the user's browser client?

A. Cookie-Transfer

B. Set-Cookie

C. Get-Cookie

D. Cache-Control

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Correct Answer: Option B

Explanation:
The 'Set-Cookie' HTTP response header is sent by the server to direct the client web browser to store a specific cookie string locally.

This question belongs to: Computer Internet and Web Technologies

Question #2

What is the function of the 'ping' command in relation to a web domain?

A. To test DNS resolution and connectivity

B. To measure page load time

C. To trace the route

D. To retrieve the IP address

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Correct Answer: Option A

Explanation:
Ping resolves the domain to an IP and sends ICMP packets to test reachability, thus checking connectivity and DNS.

This question belongs to: Computer Internet and Web Technologies

Question #3

Which of the following is a common technique to reduce the size of web resources for faster loading?

A. Minification

B. All of the above

C. Image optimization

D. Compression (Gzip)

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Correct Answer: Option B

Explanation:
Minification, compression, and image optimization are all effective methods to reduce resource size and improve load times.

This question belongs to: Computer Internet and Web Technologies

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