Which component of an email system acts as an electronic address directory mapping domains to their specific incoming mail handling servers? MCQ with Answer and Explanation

Which component of an email system acts as an electronic address directory mapping domains to their specific incoming mail handling servers?
A. HTTP Response Headers
B. HTML Base Templates
C. DNS MX (Mail Exchanger) Records
D. FTP Configuration List
Answer: Option C
Solution (By JKSSB Mock Tests)
MX (Mail Exchanger) records are configurations inside the Domain Name System (DNS) specifying which mail servers are designated to accept incoming emails for a domain.

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Practice More Internet and Web Technologies Questions

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Which of the following is a top-level domain used for network infrastructure?
A. .org
B. .gov
C. .net
D. .edu

Correct Answer: Option C


Explanation:
.net is a generic TLD originally intended for network-related entities but now used broadly. .org is for organizations, .gov for government, .edu for education.

This question belongs to: Computer Internet and Web Technologies
Question #2
Which of the following is used to encrypt data transmitted over HTTPS?
A. IPSec
B. SSH
C. SSL/TLS
D. WPA

Correct Answer: Option C


Explanation:
HTTPS uses SSL (Secure Sockets Layer) or its successor TLS (Transport Layer Security) to encrypt data between the client and server.

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Question #3
Which of the following is an example of a web-based version control system?
A. GitLab
B. All of the above
C. GitHub
D. Bitbucket

Correct Answer: Option B


Explanation:
GitHub, GitLab, and Bitbucket are all web-based platforms for hosting and managing Git repositories.

This question belongs to: Computer Internet and Web Technologies