What is the octal equivalent of decimal 20? MCQ with Answer and Explanation

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What is the octal equivalent of decimal 20?

A. 24

B. 25

C. 26

D. 23

Answer: Option A

Solution (By JKSSB Mock Tests)

20 decimal = 24 octal (2*8 + 4 = 20).

This question belongs to: Computer Computer Fundamentals

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Question #1

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An automated assembly line tracking machine that constantly measures physical automobile alignments and flags anomalies on a terminal is a:

A. Supercomputer

B. Hybrid Computer

C. Pure Analog Computer

D. Pure Digital Computer

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Correct Answer: Option B

Explanation:
It operates as a hybrid computer because it converts continuous physical physical measurements into digital signals for data processing.

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Question #2

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Which generation of computers used machine language and assembly language?

A. Third

B. Fourth

C. First

D. Second

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Correct Answer: Option C

Explanation:
First-generation computers used machine language; second used assembly as well.

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Question #3

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What is the function of an interpreter?

A. Manages memory

B. Compiles entire code

C. Converts binary to decimal

D. Translates high-level code to machine code line by line

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Correct Answer: Option D

Explanation:
An interpreter translates and executes source code line by line, without producing a separate machine code file.

This question belongs to: Computer Computer Fundamentals

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