Which of the following is a top-level domain used for network infrastructure? MCQ with Answer and Explanation

Question
Which of the following is a top-level domain used for network infrastructure?
A. .gov
B. .net
C. .org
D. .edu
Answer: Option B
Solution (By JKSSB Mock Tests)
.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
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Question #1
What is the primary operational task of a 'Root Name Server' operating within the hierarchical Domain Name System infrastructure?
A. To parse HTML structural page tags inside browser interfaces
B. To filter email spam items from corporate mail boxes
C. To monitor local physical network card connectivity metrics
D. To direct DNS query lookups to the appropriate Top-Level Domain (TLD) nameservers based on the extension of the domain requested
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Correct Answer: Option D

Explanation:
Root name servers are the first step in resolving human-readable domain names, directing inquiries to the appropriate Top-Level Domain (TLD) servers (like those for .com or .org).
This question belongs to: Computer Internet and Web Technologies
Question #2
What is the primary objective of using a Content Delivery Network (CDN) in modern web application deployments?
A. To store and deliver cached static assets from geographically distributed proxy servers
B. To provide local multi-tab browsing interfaces
C. To manage remote email transport queues
D. To dynamically change structural HTML text files automatically
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Correct Answer: Option A

Explanation:
CDNs place cached static assets (images, video, CSS) on a distributed network of edge servers near user locations to significantly accelerate page performance.
This question belongs to: Computer Internet and Web Technologies
Question #3
Which format specification is universally deployed to construct standard layout documents across the World Wide Web space?
A. SMTP Route Headers
B. HTML (Hypertext Markup Language)
C. SQL Data Tables
D. FTP Stream Settings
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Correct Answer: Option B

Explanation:
HTML is the baseline standard markup language used worldwide to organize and display structural components on web pages.
This question belongs to: Computer Internet and Web Technologies
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