Which protocol is used for remote terminal access? MCQ with Answer and Explanation

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Which protocol is used for remote terminal access?

A. SMTP

B. HTTP

C. SSH

D. FTP

Answer: Option C

Solution (By JKSSB Mock Tests)

SSH (Secure Shell) provides secure remote terminal access and command execution.

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Question #1

Which of the following is a well-known port for FTP data transfer?

A. 22

B. 23

C. 21

D. 20

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Correct Answer: Option D

Explanation:
FTP uses port 20 for data transfer and port 21 for control.

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Question #2

What is the main difference between a hub and a switch?

A. Hub forwards data based on IP, switch based on MAC

B. Hub works at layer 3; switch at layer 2

C. Hub broadcasts to all ports; switch forwards to specific port based on MAC

D. Hub is intelligent; switch is not

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Correct Answer: Option C

Explanation:
A hub sends data to all ports, while a switch learns MAC addresses and sends only to the destination port.

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Question #3

Which protocol is used to automatically assign IP addresses to devices in a network?

A. DNS

B. ICMP

C. ARP

D. DHCP

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Correct Answer: Option D

Explanation:
DHCP (Dynamic Host Configuration Protocol) dynamically assigns IP addresses and other network parameters.

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