Basics of Computer Science Online Quiz



Following quiz provides Multiple Choice Questions (MCQs) related to Basics of Computer Science. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - Which among the following is not an operating system?

A - UNIX

B - LINUX

C - OS X

D - PITEX

Answer : D

Explanation

N/A

Q 2 - Consider the following statements:

1. Bit is a basic unit of information used in computing and digital communications.

2. In information theory, one bit is characteristically defined as the uncertainty of a binary random variable that is either 0 or 1 with equal probability.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : C

Explanation

The symbol of bit (as a unit of information), is bit. It is recommended by the IEC 80000-13:2008 standard.

Q 3 - Consider the following statements:

1. Encryption converts original text/message into cipher text by using encryption algorithm and an encryption key.

2. Asymmetric encryption protects stored data, operating system, IP address, etc.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both 1 & 2

D - Neither 1 nor 2

Answer : C

Explanation

Encryption is progressively used to protect the digital information.

Q 4 - Which among the following controls all parts of the computer and known as the brain of computer?

A - RAM

B - ROM

C - CPU

D - Processor

Answer : C

Explanation

All processing works of a computer is performed by Central Processing Unit or CPU.

Answer : C

Explanation

MAN stands for Metropolitan Area Network.

Q 6 - Which among the following is used in creating a chart?

A - Chart wizard

B - Computing wizard

C - Calculating wizard

D - Data wizard

Answer : A

Explanation

Chart wizard is more commonly used in Excel program.

Q 7 - A web address is usually known as …

A - URL

B - UWL

C - WWW

D - UVL

Answer : A

Explanation

URL stands for Uniform Resource Locator.

Q 8 - Which among the following is the shortcut key to refresh the active window in your computer system?

A - F5

B - F9

C - F10

D - Ctrl + P

Answer : A

Explanation

N/A

Q 9 - Who among the following has invented worldwide web?

A - Tim Berners-Lee

B - George Boole

C - Jean Bartik

D - Per Brinch Hansen

Answer : A

Explanation

Lee invented www in 1989-90.

Q 10 - Who among the following is popular as ‘Mother of Internet?’

A - Radia Perlman

B - Ada Lovelace

C - Grace Hopper

D - Anita Borg

Answer : A

Explanation

Perlman has invented spanning tree protocol in 1985.

Answer : A

Explanation

All the information stored, processed, or any other information used in computer is known as data.

Q 12 - Which among the following is used in making I.C. chip of a computer?

A - Silicon

B - Platinum

C - Silver

D - Selenium

Answer : A

Explanation

N/A

Q 13 - Consider the following statements:

1. Cache memory is faster, costlier, and temporary storage device.

2. The CPU and hard drive preferably use a cache memory.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : C

Explanation

N/A

Q 14 - Consider the following statements?

1. Programming language is an artificial language, used by computer to express computation.

2. Programming language is a set of keywords, symbols, and a system of rules that constructs meaningful statements.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : C

Explanation

N/A

Answer : B

Explanation

N/A

Q 17 - In a network system, which among the following is the most powerful computer?

A - Laptop

B - Desktop

C - Server

D - Notebook

Answer : C

Explanation

N/A

Q 18 - Consider the following statements:

1. Web Browser is an application/software that is used to navigate the world wide web (WWW).

2. Web Browser assists to connect personal computer to internet.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : C

Explanation

Some popular web browsers are, Chrome, Firefox, Safari, Internet Explorer, Opera, etc.

Q 19 - Which among the following connects two more networks?

A - Bus

B - HTTP

C - Gateway

D - Highway

Answer : C

Explanation

In a computer world, gateway is a network node that provides access to another network.

Q 20 - Which among the following correctly expresses the term ‘Junk Email?’

A - Virus

B - Spam

C - Promotional email

D - Spoof

Answer : B

Explanation

It is unwanted or unsolicited emails.

basics_of_computer_science_online_quiz.htm
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