Which protocol is used for sending email between servers? MCQ with Answer and Explanation

Which protocol is used for sending email between servers?
A. SMTP
B. HTTP
C. POP3
D. IMAP
Answer: Option A
Solution (By JKSSB Mock Tests)
SMTP (Simple Mail Transfer Protocol) is used for sending email from client to server and between servers.

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Practice More Computer Networking Questions

Question #1
Which OSI layer is responsible for error detection and correction at the data link layer?
A. Transport layer
B. Data link layer
C. Physical layer
D. Network layer

Correct Answer: Option B


Explanation:
The data link layer performs error detection (and sometimes correction) using frame check sequences.

This question belongs to: Computer Computer Networking
Question #2
What structural issue creates a single point of failure hazard in a standard network Star Topology configuration?
A. A break in any single client cable drops the entire network.
B. The endpoint terminators can burn out.
C. If the central hub or switch fails, all connected devices lose network connectivity.
D. MAC addresses can conflict across ports automatically.

Correct Answer: Option C


Explanation:
Because all devices in a star topology connect back to a central switch or hub, a failure in that central device disconnects the entire network.

This question belongs to: Computer Computer Networking
Question #3
What is a default gateway in a network?
A. The primary DNS server
B. The device that routes traffic to other networks
C. The network switch
D. The DHCP server

Correct Answer: Option B


Explanation:
The default gateway is a router that connects the local network to external networks.

This question belongs to: Computer Computer Networking