Which part of an email address indicates the specific domain or host mail server where the mailbox is located? MCQ with Answer and Explanation

Which part of an email address indicates the specific domain or host mail server where the mailbox is located?
A. The text following the '@' symbol
B. The signature block
C. The text preceding the '@' symbol
D. The subject line header
Answer: Option A
Solution (By JKSSB Mock Tests)
In an email address format (username@domain.com), the part following the '@' symbol represents the target host domain or mail server.

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Practice More Internet and Web Technologies Questions

Question #1
What does the 'WWW' stand for, and who is officially credited with its invention?
A. Web Working Wireless, Robert Kahn
B. World Wide Web, Alan Turing
C. World Wide Wireless, Vint Cerf
D. World Wide Web, Tim Berners-Lee

Correct Answer: Option D


Explanation:
The World Wide Web (WWW) was invented by the British scientist Sir Tim Berners-Lee while working at CERN in 1989.

This question belongs to: Computer Internet and Web Technologies
Question #2
Which type of web cookies originate from a domain different from the specific website currently being viewed by the user in their active browser tab?
A. Secure Session Flags
B. First-Party Cookies
C. Third-Party Cookies
D. HttpOnly Tokens

Correct Answer: Option C


Explanation:
Third-party cookies are set by external domains (like embedded ad scripts or social tracking widgets) on the page you are currently browsing.

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Question #3
Which of the following parameters represents an accurate description of the web development concept called 'Single Sign-On' (SSO)?
A. An unlinked text documentation archive stored on local devices
B. An authentication mechanism that allows a user to log in once and gain secure access to multiple independent web applications or services without re-entering credentials
C. A specialized local browser link designed to clear cache blocks
D. A physical computer motherboard processing chip specification

Correct Answer: Option B


Explanation:
SSO authenticates a user once across a centralized identity provider, passing secure tokens to connected web systems to streamline access and eliminate login fatigue.

This question belongs to: Computer Internet and Web Technologies