Delhi Police Constable: Important Computer Questions You Need to Know

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Q.1. Which device is used to reproduce drawings using pens that are attached to movable arms?

(A) Plotter

(B) Light Pen

(C) Scanner

(D) Printer

Show Ans

Ans-(A)

Q.2. ‘Scitation’ is the online host service of –

(A) American Institute of Physics

(B) University of Maryland

(C) Society for Industrial

(D) Oxford University

Show Ans

Ans-(A)

Q.3. Which set of rules is applicable for exchange of files over Internet?

(A) FTP/IP

(B) HTTP

(C) HTML

(D) HYPERLINK

Show Ans

Ans-(B)

Q.4. When data changes in multiple lists and all lists are not updated, this causes

(A) data redundancy

(B) information overload

(C) duplicate data

(D) data inconsistency

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Ans-(D)

Q.5. A word in a web page that, when clicked, opens another document is called _

(A) anchor

(B) hyperlink

(C) reference

(D) URL

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Ans-(B)

Q.6. One Terabyte (1 TB) is equal to?

(A) 1028 GB

(B) 1012 GB

(C) 1000 GB

(D) 1024 GB

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Ans-(D)

Q.7. Which operating system is developed and used by Apple Inc.?

(A) Windows

(B) Android

(C) iOS

(D) UNIX

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Ans-(C)

Q.8. Which of the following memories is an optical memory?

(A) Floppy Disk

(B) Bubble Memories

(C) CD–ROM

(D) Core Memories

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Ans-(C)

Q.9.Java was originally invented by

(A) Oracle

(B) Microsoft

(C) Novell

(D) Sun

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Ans-(D)

Q.10. Whose trademark is the operating system UNIX?

(A) Motorola

(B) Microsoft

(C) BELL Laboratories

(D) AshtonTate

Show Ans

Ans-(C)

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