Which communication technology is used in submarine cable networks? MCQ with Answer and Explanation

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Which communication technology is used in submarine cable networks?

A. Satellite signals

B. Microwaves

C. Radio waves

D. Optical fiber

Answer: Option D

Solution (By JKSSB Mock Tests)

Submarine cables use optical fiber technology to transmit high-speed data across oceans.

This question belongs to: Geography GK Transport and Communication

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Question #1

Which railway manufacturing unit is located at Chittaranjan?

A. ICF

B. CLW

C. RCF

D. DLW

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Correct Answer: Option B

Explanation:
Chittaranjan Locomotive Works (CLW) manufactures electric locomotives.

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Question #2

Which highway system connects major cities across India?

A. National highways

B. Village roads

C. State highways

D. District roads

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Correct Answer: Option A

Explanation:
National highways connect major cities and economic centers across India.

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Question #3

Which communication technology is used in contactless smart cards?

A. Telegraph

B. NFC

C. VSAT

D. DTH

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Correct Answer: Option B

Explanation:
Near Field Communication (NFC) is used in contactless payment cards and smart cards.

This question belongs to: Geography GK Transport and Communication

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