Computer Basics

JKSSB Junior Assistant · Basic Concepts of Computers · 289 practice questions with answers and explanations: 118 Easy, 92 Medium, 79 Hard.

Sample questions

Sample Easy question 1

What does the abbreviation VR stand for?

  1. What You See Is What You Get
  2. Virtual Reality
  3. Infrastructure as a Service
  4. Platform as a Service
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Answer: B. VR stands for Virtual Reality.

Sample Easy question 2

AR stands for:

  1. Artificial Intelligence
  2. Augmented Reality
  3. Relational Database Management System
  4. Enterprise Resource Planning
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Answer: B. AR stands for Augmented Reality.

Sample Easy question 3

The full form of OLE is:

  1. Machine Learning
  2. Free and Open Source Software
  3. Software as a Service
  4. Object Linking and Embedding
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Answer: D. OLE stands for Object Linking and Embedding.

Sample Medium question 4

The octal equivalent of the decimal number 28 is:

  1. 44
  2. 33
  3. 35
  4. 34
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Answer: D. 28 = 34 in octal.

Sample Medium question 5

The octal equivalent of the decimal number 55 is:

  1. 66
  2. 67
  3. 77
  4. 70
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Answer: B. 55 = 67 in octal.

Sample Medium question 6

The octal equivalent of the decimal number 42 is:

  1. 62
  2. 52
  3. 53
  4. 51
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Answer: B. 42 = 52 in octal.

Sample Hard question 7

What is the sum of the hexadecimal numbers 462 and 580?

  1. 9DC
  2. 9E2
  3. 9EC
  4. 9DD
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Answer: B. In decimal 1122 + 1408 = 2530, which is 9E2 in hexadecimal.

Sample Hard question 8

The octal number 3116 is equal to which hexadecimal number?

  1. 63F
  2. 63C
  3. 646
  4. 64E
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Answer: D. Octal 3116 = decimal 1614 = hexadecimal 64E.

Sample Hard question 9

The octal number 4133 is equal to which hexadecimal number?

  1. 859
  2. 85B
  3. 84A
  4. 852
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Answer: B. Octal 4133 = decimal 2139 = hexadecimal 85B.

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