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.

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

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:

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. Iris scanning involves capturing an image of one or both the eyes for security purpose.

2. Iris pattern forms at birth and its pattern are unique for every individual and remains stable for throughout the life.

Choose the correct answer from the codes given below:

Answer : C

Explanation

Iris pattern of even identical twin is different; however, the technique of iris scanning might not work if the person is wearing contact glasses or having aniridia (glaucoma).

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

Answer : C

Explanation

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

Q 5 - Which among the following is incorrectly matched?

A - PSTN Public Switched Telephone Networks

B - PSDN Public Service Digital Network

C - VAN Value Added Network

D - ISDN International Services Digital Network

Answer : D

Explanation

ISDN stands for Integrated Services Digital Network.

Q 6 - Which among the following period is known as the era of second generation computer?

Answer : D

Explanation

N/A

Q 7 - Who among the following is popular as the father of computer?

Answer : A

Explanation

N/A

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

Answer : A

Explanation

N/A

Q 9 - Who among the following has created the ‘twitter?’

Answer : A

Explanation

Twitter was created in 2006.

Q 10 - Which among the following is the shortcut key to open a new window?

Answer : B

Explanation

N/A

Q 11 - The ‘P’ in CPU stands for …

Answer : A

Explanation

N/A

Q 12 - Which among the following works faster?

Answer : B

Explanation

Built in CPU, cache is much faster than others.

Q 13 - If you check the 26 letters’ keys on a computer keyboard horizontally – how many meaningful words can be made by adding two/three or more keys together in row?