What is the octal equivalent of decimal 64? MCQ with Answer and Explanation

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What is the octal equivalent of decimal 64?

A. 111

B. 100

C. 101

D. 110

Answer: Option B

Solution (By JKSSB Mock Tests)

64 decimal = 100 octal (1*64 + 0*8 + 0).

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Question #1

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A type of memory whose contents are permanently etched during manufacturing and cannot be easily rewritten or wiped when power is turned off is:

A. Virtual Memory

B. RAM

C. Cache Memory

D. ROM

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Correct Answer: Option D

Explanation:
ROM (Read-Only Memory) is non-volatile; its embedded code remains safe and intact even when the machine loses power completely.

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Question #2

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What is the binary equivalent of hexadecimal F?

A. 1011

B. 1110

C. 1111

D. 1101

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Correct Answer: Option C

Explanation:
F hex = 15 decimal = 1111 binary.

This question belongs to: Computer Computer Fundamentals

Question #3

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A type of small computer that is designed to fit entirely onto a single circuit board, containing a microprocessor, RAM, and basic I/O interfaces for hobbyists is a:

A. Mainframe

B. Supercomputer

C. Analog Controller

D. Single-board Microcomputer

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Correct Answer: Option D

Explanation:
Single-board computers (like the Raspberry Pi) are full microcomputers built on a lone circuit board, widely used for embedded projects.

This question belongs to: Computer Computer Fundamentals

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