What is the decimal equivalent of hexadecimal 2B? MCQ with Answer and Explanation

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What is the decimal equivalent of hexadecimal 2B?

A. 45

B. 46

C. 43

D. 44

Answer: Option C

Solution (By JKSSB Mock Tests)

2B = 2*16 + 11 = 32+11 = 43.

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Question #1

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What is the purpose of the control panel?

A. Manages hardware

B. Provides internet access

C. Allows user to configure system settings

D. Compiles programs

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Correct Answer: Option C

Explanation:
Control Panel (in Windows) provides options to change system settings.

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Question #2

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Which of the following is a characteristic of microcomputers?

A. Used in large data centers

B. Very high cost

C. Designed for single-user

D. Large physical size

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Correct Answer: Option C

Explanation:
Microcomputers are personal computers designed for individual use.

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Question #3

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A type of permanent secondary storage that reads and writes data magnetically onto rotating circular platters is a:

A. Compact Disc

B. Hard Disk Drive

C. EEPROM Chip

D. Solid State Drive

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Correct Answer: Option B

Explanation:
Hard Disk Drives (HDDs) use non-volatile magnetic storage technology consisting of spinning metal platters and read/write heads.

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