What type of communication channel allows data to move in both directions, but only one direction at a time (e.g., a standard citizen band radio)? MCQ with Answer and Explanation

Question

What type of communication channel allows data to move in both directions, but only one direction at a time (e.g., a standard citizen band radio)?

A. Half-Duplex

B. Full-Duplex

C. Multiplex

D. Simplex

Answer: Option A

Solution (By JKSSB Mock Tests)

Half-duplex communication allows bidirectional traffic, but devices must alternate sending and receiving to prevent data collisions.

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Question #1

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Which type of network spans across multiple office locations in different cities or states, typically requiring leased telecommunication lines?

A. MAN

B. LAN

C. PAN

D. WAN

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Correct Answer: Option D

Explanation:
A Wide Area Network (WAN) connects separate business branches across regional, national, or global boundaries.

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Question #2

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Which type of network covers a building or campus?

A. PAN

B. WAN

C. LAN

D. MAN

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Correct Answer: Option C

Explanation:
LAN typically spans a single building or campus.

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Question #3

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Which of the following is a non-routable (private) IP address?

A. 8.8.8.8

B. 192.168.1.100

C. 203.0.113.100

D. 1.1.1.1

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Correct Answer: Option B

Explanation:
192.168.x.x is private and not routable on the public Internet.

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