25 multiple choice questions on computer
Answers
1-Which of the following retains the information it’s storing when the power to the system is turned off?
(A) CPU
B) ROM
(C) RAM
(D) DIMM
(Ans: B)
2-A network of computers and other devices that is confined to a relatively small space is called?
(A) Wide Area Network
(B) Local Area Network
(C) Global Network
(D) Peer-to-Peer Network
(Ans: B)
3-Every computer connected to the Internet is identified by a unique four-part string, known as
(A) IP address
(B) Host name
(C) Domain name
(D) None of the above
(Ans: A)
4-ENIAC was the first general-purpose electronic computer. ENIAC stands for
(A) Electronic Network Interactive Analytic Computer
(B) Electronic Numerical Integrator and Computer
(C) Electronic Network Integrated Analytical Computer
(D) Electronic Numerical Integrated Automatic Computer
(Ans: B)
5-Which of the following statement is correct?
(A) 1 KB = 1024 bytes
(B) 1 MB=2048 bytes
(C) 1 MB = 1000 kilobytes
(D) 1 KB = 1000 bytes
(Ans: A)
6-Which of the following memories must be refreshed many times per second?
(A) Static RAM
(B) Dynamic RAM
(C) EPROM
(D) ROM
(Ans: B)
7-.PNG refers to
(A) Image file
(B) Movie/animation file
(C) Audio file
(D) MS Office document
(Ans: A)
8-USB is a device used to store data and it stands for
(A) Unlimited Service Band
(B) Unlimited Serial Bus
(C) Universal Serial Bus
(D) Universal Service Bus
(Ans: C)
9- ______ is a technology that allows telephone calls to be made over computer networks like the Internet.
(A) VoIP
(B) GSM
(C) Modem
(D) CDMA
(Ans: A)
10-To identify TCP/IP errors such as connection problems ______ command can be used
(A) FTP
(B) Ping
(C) POP3
(D) STP
11-A program that runs in the background on your computer, sending information about your browsing habits to the company that installed it on your computer is called as
(A) Pop-ups
(B) Adware
(C) Grayware
(D) Spyware
(Ans: C)
12-Software is a set of programs, which is designed to perform a well defined function and there are two types of software, application and system. The following are all application software except for
(A) Microsoft Word
(B) Microsoft Excel
(C) Microsoft Power Point
(D) Microsoft Windows
(Ans: D)
13-1 Gigabyte (GB) is equal to
(A) 1024 bytes
(B) 1024 KB
(C) 1024 MB
(D) 1024 TB
(Ans: C)
14-The fourth generation computers are based on
(A) Transistor
(B) Integrated circuit
(C) VLSI microprocessor
(D) ULSI microprocessor
(Ans: C)
15-All the following are computer input devices except for
(A) Keyboard
(B) Printer
(C) Mouse
(D) Joy Stick
(Ans: B)
16-A CD-RW has a speed rating of 12x 10x 32x. What do the three numbers refer to in order?
(A) Write, rewrite, read
(B) Read, write, rewrite
(C) Rewrite, read, write
(D) Write, read, rewrite
(Ans: A)
17-The information stored in ______ is erased when the computer is turned off
(A) ROM
(B) RAM
(C) BIOS
(D) CPU
(Ans: B)
18-Malware is the short form for malicious software and used to refer to
(A) Spyware
(B) Worm
(C) Virus
(D) All of the above
(Ans: D)
19-What is the best way to protect your hard drive data?
(A) Scanning
(B) Backup
(C) Defragmentation
(D) Delete junk
(Ans: B)
20-The following device is used to connect two systems using different protocols
(A) Modem
(B) Repeater
(C) Gateway
(D) Bridge
The digital computer accepts ____ data as input.
Binary
Count
Numeric
Text
(Ans:a)
The following are included in graphics data, except
Music
Charts
Drawing
Photographs
(Ans:a)
Which of the following has highest speed?
CPU
Main memory
Input/output devices
All have same speed
(Ans:a)
The speed imbalance between the main memory and central processor is avoided by using
Cache memory
Flash memory
Secondary memory
All of the above
(Ans:a)
Which of the following is not an input/output device?
Printer
Readers
Displays
Magnetic tapes
(Ans:d)
Which of the following has low speed storage?
CD-ROM
Extended storage
Magnetic disks
Magnetic tapes
(Ans:d)
Who is known as ‘Father of computers’?
Vannevar Bush
Charles Babbage
Howard Aiken
John Atansoff
(Ans:b)
Which of the following is an output device?
Mouse
Joystick
Plotter
Optical mark reader
(Ans:c)
Which of the following is an input device?
Joystick
Printer
Plotter
Visual display unit
(Ans:a)
Which is the main part of Central Processing Unit (CPU)?
Arithmetic and logic unit
Control Unit
Memory unit
Input/Output unit
Answer:
cpu
screen
mouse
keyboard