Which protocol is used for file transfer with authentication and encryption? MCQ with Answer and Explanation

Which protocol is used for file transfer with authentication and encryption?
A. HTTP
B. TFTP
C. FTP
D. SFTP
Answer: Option D
Solution (By JKSSB Mock Tests)
SFTP (SSH File Transfer Protocol) provides secure file transfer with encryption.

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Practice More Computer Networking Questions

Question #1
What is the main disadvantage of a bus topology?
A. High cost
B. Requires a central hub
C. Difficult to add new devices
D. Single point of failure in the backbone

Correct Answer: Option D


Explanation:
In bus topology, if the main cable (backbone) fails, the entire network goes down.

This question belongs to: Computer Computer Networking
Question #2
Which device simply acts as a multiport signal repeater, copying incoming bits blindly out to all other ports without reading any address headings?
A. Switch
B. Hub
C. Router
D. Gateway

Correct Answer: Option B


Explanation:
A hub lacks processing logic to check frame targets. It serves as a Layer 1 broadcast device, repeating signals out across all connected nodes.

This question belongs to: Computer Computer Networking
Question #3
Which network topology uses a backbone cable to which all devices are connected via drop lines?
A. Star
B. Mesh
C. Ring
D. Bus

Correct Answer: Option D


Explanation:
Bus topology uses a single backbone cable and each device connects to it via a drop line.

This question belongs to: Computer Computer Networking