What causes moire patterns in scanned images? MCQ with Answer and Explanation

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What causes moire patterns in scanned images?

A. Low resolution

B. High ink

C. Wrong color mode

D. Interference with printed patterns

Answer: Option D

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Descreening filters help.

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Question #1

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OCR stands for:

A. Output Control Reader

B. Optical Color Reader

C. Original Character Register

D. Optical Character Recognition

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Correct Answer: Option D

Explanation:
OCR converts scanned text images into editable text.

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Question #2

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Which input device can replace a mouse in laptops?

A. All

B. Joystick

C. Trackball external

D. Touchpad

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Correct Answer: Option A

Explanation:
Multiple options available.

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Question #3

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The standard interface for modern hard drives is:

A. SCSI only

B. SATA or NVMe

C. Parallel port

D. IDE only

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Correct Answer: Option B

Explanation:
SATA for HDDs, NVMe for SSDs.

This question belongs to: Computer Computer Hardware

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