Which of the following is a connectionless protocol at the transport layer? MCQ with Answer and Explanation

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Which of the following is a connectionless protocol at the transport layer?

A. UDP

B. IGMP

C. ICMP

D. TCP

Answer: Option A

Solution (By JKSSB Mock Tests)

UDP is connectionless; it sends datagrams without establishing a connection.

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Practice More Computer Networking Questions

Question #1

What is the purpose of an Ethernet frame's preamble?

A. To synchronize the sender and receiver

B. To provide error detection

C. To carry data

D. To indicate the frame length

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Correct Answer: Option A

Explanation:
The preamble is a 7-byte pattern for synchronization and clock alignment.

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Question #2

What is the maximum number of hosts per network in a Class C IP address?

A. 16,777,214

B. 126

C. 65534

D. 254

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Correct Answer: Option D

Explanation:
Class C provides 8 bits for hosts (2^8 - 2 = 254 usable hosts).

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Question #3

Which type of network area classification connects peripheral accessories like a wireless mouse and headphones to a user's laptop?

A. PAN

B. LAN

C. WAN

D. MAN

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Correct Answer: Option A

Explanation:
A Personal Area Network (PAN) handles short-range data connections for personal electronic devices close to an individual.

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