Online Quiz


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 – Consider the following statements:

1. In 1985, Microsoft launched the revolutionary operating systems and named it ‘Window.’

2. Window programs employ a Graphical User Interface (GUI).

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

GUI facilitates its users to give command only on clicking on-screen symbols. It also facilitates users to perform multiple task simultaneously.


Q 2 – The malware that fetches the personal data such as bank details, credit/card details, password, etc. from remotely located computers is known as …

A – Virus

B – Worms

C – Trojans

D – Spyware

Answer : C

Explanation

Through spyware, hacker records all the activities done on other targeted computers. Spyware records and transmits the data entered by using keyboards.


Q 3 – In reference to data encryption, consider the following statements:

1. Keys of encryption are characteristically stored in the computer files itself and they are also encrypted.

2. Keys can be assessed only with a passphrase.

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

Keys are similar to passwords, but they are much longer.


Q 4 – Consider the following statements:

1. The term DOS stands for Disk Operating System.

2. Loading operating files into the main memory of computer is known as booting up.

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

Only after booting up computer is ready to use.


Q 5 – If you restart your computer by selecting the restart button, it is known as …

A – Soft boot

B – Cold boot

C – Warm boot

D – A & C

Answer : D

Explanation

One can also restart a computer by pressing Ctrl + Alt + Del keys simultaneously.


Answer : C

Explanation

Fifth generation computer was an initiative by Japan”s Ministry of International Trade and Industry.


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

A – Charles Babbage

B – Scott Aaronson

C – Charles Bachman

D – David A. Bader

Answer : A

Explanation

N/A


Q 8 – Who among the following has designed the PHP programing language?

A – Rasmus Lerdorf

B – Guido van Rossum

C – Brendan Eich

D – James Gosling

Answer : A

Explanation

Rasmus designed PHP in 1995.


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

A – Jack Dorsey

B – Butler Lampson

C – Ronald Rider

D – Greg Chesson

Answer : A

Explanation

Twitter was created in 2006.


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

Computer is a machine, which has the ability to follow a sequence of operations, known as programs and make human works flexible and useful.


Answer : B

Explanation

Magnetic disk or simply disk is an information storage device.


Q 13 – Which among the following is known as ‘point-and-draw’ device?

A – Keyboard

B – Scanner

C – Mouse

D – CPU

Answer : C

Explanation

N/A


Q 14 – Consider the following statements:

1. Algorithm is a set of instructions and basic techniques used to solve a problem/query.

2. An algorithm is a list of well-defined instructions for completing a defined task.

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

A mistake in an algorithm that causes incorrect results is called a logical error.


Q 15 – Byte is the series of ……………… bits.

A – 2

B – 5

C – 8

D – 12

Answer : C

Explanation

N/A


Q 17 – In reference to computer networking, consider the following statements:

1. Node is a connection or junction point in a computer networking system.

2. At the node transmission of data/information either ends or starts.

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 18 – Consider the following statements:

1. Search engine is a specialized application/program that helps users to search the information on the web/internet.

2. Search engine can find anything available on the internet in fraction of seconds.

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 major search engines are Google, MSN, Yahoo, etc.


Q 19 – Which among the following was the first computer virus?

A – Conficker

B – I Love you

C – Melissa

D – Elk

Answer : D

Explanation

Elk Corner was seen in 1981 and considered as the first virus that affected personal computer, but in 1986 Farooq Alvi Brothers, reportedly to deter unauthorized copying of the software, had created ‘Brain’ virus.


Q 20 – Consider the following statements:

1. Icons are typically small images saved on desktop.

2. Icons are the shortcut links of various programs, files, folders, etc. saved on the desktop.

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

To open a file/folder/program/application, one need to click on its icon; for example, an icon of ‘My Computer,’ Recycle bin,’ ‘Documents,’ ‘Internet Explorer,’ ‘Google Chrome,’ etc.


'';