What is the primary operational task of a 'TLD (Top-Level Domain) Name Server' operating within the Domain Name System hierarchy? MCQ with Answer and Explanation

Question
What is the primary operational task of a 'TLD (Top-Level Domain) Name Server' operating within the Domain Name System hierarchy?
A. To parse HTML structural page code inside browser windows
B. To filter email spam items from incoming mail folders
C. To track local physical computer operating temperature logs
D. To maintain records for all domain names sharing a specific extension (like .com or .org) and direct queries to their respective authoritative nameservers
Answer: Option D
Solution (By JKSSB Mock Tests)
TLD nameservers maintain the directory data for specific domain extensions, acting as an essential intermediate link in the DNS resolution process by routing queries to authoritative servers.
This question belongs to: Computer Internet and Web Technologies
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Question #1
What standard protocol provides an unencrypted, basic interface to log into remote server command-line shells on the internet, which has largely been replaced by secure alternatives?
A. HTTPS
B. Telnet
C. SSH
D. SFTP
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Correct Answer: Option B

Explanation:
Telnet is an older network protocol used to access remote computers, but it transmits all traffic in plain text, making it highly insecure compared to SSH.
This question belongs to: Computer Internet and Web Technologies
Question #2
What is the function of an encryption certificate standard like SSL/TLS when integrated into e-commerce web channels?
A. To automatically build clean layout formatting patterns
B. To accelerate processing speeds of graphic vector files
C. To establish cryptographic authentication and data scrambling to secure monetary transactions and logins
D. To track site page view metadata collections
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Correct Answer: Option C

Explanation:
SSL/TLS certificates authenticate web server identities and encrypt data streams, preventing hackers from reading sensitive credit card or login transmissions.
This question belongs to: Computer Internet and Web Technologies
Question #3
Which protocol is used for retrieving email from a server and is known for leaving messages on the server?
A. HTTP
B. SMTP
C. IMAP
D. POP3
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Correct Answer: Option C

Explanation:
IMAP is designed to manage emails on the server, synchronizing across multiple devices, whereas POP3 typically downloads and removes messages.
This question belongs to: Computer Internet and Web Technologies
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