A hardware firewall can be a: MCQ with Answer and Explanation

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A hardware firewall can be a:

A. Software only

B. Monitor setting

C. Printer option

D. Dedicated device or router feature

Answer: Option D

Solution (By JKSSB Mock Tests)

Network protection.

This question belongs to: Computer Computer Hardware

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Question #1

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What is ECC memory used for?

A. Monitors

B. Error correction in servers

C. Gaming PCs only

D. Laptops

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Correct Answer: Option B

Explanation:
Error-Correcting Code memory for reliability.

This question belongs to: Computer Computer Hardware

Question #2

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What is ghosting in the context of keyboards?

A. Printer smearing

B. Multiple unintended key presses

C. Mouse lag

D. Monitor issue

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Correct Answer: Option B

Explanation:
NKRO (n-key rollover) prevents it.

This question belongs to: Computer Computer Hardware

Question #3

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What is a common cause of printer paper jam?

A. Driver error

B. Low ink

C. High resolution setting

D. Wrong paper type or rollers issue

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Correct Answer: Option D

Explanation:
Regular maintenance prevents jams.

This question belongs to: Computer Computer Hardware

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