Duplex scanning refers to: MCQ with Answer and Explanation

Duplex scanning refers to:

A. Double resolution

B. Scanning both sides of a page automatically

C. Color and B/W

D. Two scanners

Answer: Option B

Saves time.

This question belongs to: Computer Computer Hardware

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Question #1 Report Error

What is ghosting in the context of keyboards?

A. Mouse lag

B. Multiple unintended key presses

C. Monitor issue

D. Printer smearing

Correct Answer: Option B

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

This question belongs to: Computer Computer Hardware

Question #2 Report Error

The purpose of a case fan is:

A. GPU only

B. PSU only

C. Overall system airflow

D. CPU only

Correct Answer: Option C

Explanation:
Balanced cooling.

This question belongs to: Computer Computer Hardware

Question #3 Report Error

The memory controller in modern CPUs is often:

A. External chip

B. In RAM

C. On motherboard only

D. Integrated in the processor

Correct Answer: Option D

Explanation:
Reduces latency.

This question belongs to: Computer Computer Hardware