Which communication network spans an entire country or continent? MCQ with Answer and Explanation

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Which communication network spans an entire country or continent?

A. PAN

B. WAN

C. LAN

D. MAN

Answer: Option B

Solution (By JKSSB Mock Tests)

A Wide Area Network (WAN) covers very large geographical areas.

This question belongs to: Geography GK Transport and Communication

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Which is the main use of optical fiber cables?

A. Road construction

B. Electricity generation

C. Water supply

D. High-speed data transmission

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Correct Answer: Option D

Explanation:
Optical fiber cables are used for fast and reliable communication over long distances.

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Question #2

Which port is located on the Hooghly River?

A. Paradip

B. Kandla

C. Mormugao

D. Kolkata Port

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Correct Answer: Option D

Explanation:
Kolkata Port is situated on the Hooghly River and is India's only riverine major port.

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Question #3

Which device is used to convert digital signals into analog signals for transmission over telephone lines?

A. Modem

B. Router

C. Switch

D. Repeater

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Correct Answer: Option A

Explanation:
A modem modulates and demodulates signals, converting digital data into analog signals and vice versa.

This question belongs to: Geography GK Transport and Communication

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