CBSE Class 9 Computer Science Fundamentals of Computer MCQs

Question. The scrambling of code is known as:
a) Encryption.
b) a firewall.
c) Scrambling.
d) Password proofing.

Answer : A

Question. A person who used his or her expertise to gain access to other people's computers to get information illegally or do damage is a
a) Hacker
b) spammer
c) instant messenger
d) programmer

Answer : A

Question. To access properties of an object, the mouse technique to use is
a) Dragging
b) dropping
c) right-clicking
d) shift-clicking

Answer : C

Question. ------Is defined as any crime completed through the use of computer technology.
a) Computer forensics
b) Computer crime
c) Hacking
d) Cracking

Answer : B

Question. Which of the following is the smallest storage?
a) Megabyte
b) Gigabyte
c) Terabyte
d) None of these

Answer : D

Question. In 1999, the Melissa virus was a widely publicised:
a) E-mail virus.
b) Macro virus.
c) Trojan horse.
d) Time bomb

Answer : A

Question. Which of the following helps to protect floppy disks from data getting accidentally erased?
a) Access notch
b) Write-protect notch
c) Entry notch
d) Input notch

Answer : B

Question. ------ refers to electronic trespassing or criminal hacking.
a) Cracking
b) Jacking
c) Spoofing
d) Smarming

Answer : A

Question. Switching device of fifth generation computer is--------
a) Vacuum tubes
b) Transistors
c) IC
d) VLSI

Answer : D

Question. The computer abbreviation KB usually means
a) Key Block
b) Kernel Boot
c) Kilo Byte
d) Kit Bit

Answer : C

Question. An intentionally disruptive program that spreads from program to program or from disk to disk is known as a:
a) Trojan horse.
b) Virus.
c) Time bomb
d) Time-related bomb sequence.

Answer : B

Question. The typical computer criminal is a(n):
a) Young hacker.
b) Trusted employee with no criminal record
c) Trusted employee with a long, but unknown criminal record
d) Overseas young cracker.

Answer : B

Question. ........... computer are of large size
a) Micro
b) Mainframe
c) Super
d) Mini

Answer : B

Question. A DVD is an example of a (n)-
a) hard disk
b) optical disc
c) output device
d) solid-state storage device

Answer : B

Question. To prevent the loss of data during power failures, use a(n):
a) Encryption program.
b) Surge protector.
c) Firewall.
d) UPS.

Answer : D

Question. Note book, laptop,palm,hand-held computers are coming under the category of......... computer
a) Digital computer
b) Mainframe computer
c) Portable computer
d) Hybrid computer

Answer : C

Question. Light pen and joystick are............
a) Algorithm
b) Input devices
c) Output devices
d) Portals

Answer : B

Question. Touch Screen is............
a) Input device
b) Output device
c) Both a & b above
d) None of these

Answer : C

Question. .............printer is the cheapest in terms of price and operating cost
a) Inkjet
b) Laser
c) Thermal
d) Dot matrix

Answer : D

Question. .......... printer is a non-impact printer and is quite in working
a) Inkjet
b) Laser
c) Thermal
d) Dot matrix

Answer : A

Question. .......... are high-end printers
a) Inkjet
b) Laser
c) Thermal
d) Dot matrix

Answer : B

Question. ......... are used for plotting graphs and design on papers
a) Trackball
b) Joystick
c) Light pen
d) Plotters

Answer : D

Question. Daisy wheel, Drum, chain etc are the .............
a) Flow chart
b) Mouse
c) Key board
d) Printers

Answer : D

Question. ....are specific to users' needs
a) System software
b) Application software
c) Assemblers
d) Compilers

Answer : B

Question. Joshy, Perfumes are examples of.............
a) Operating system
b) Computer languages
c) Computer viruses
d) Web portals

Answer : C

Question. Which of the following is/ are operating systems
a) Windows
b) Unix
c) OS/2
d) All of these

Answer : D

Question. “MAN” stands for
a) Maximum Area Network
b) Minimum Area Network
c) Main Area Network
d) Metropolitan Area Network

Answer : D

Question. Which of the following is a network topology
a) LAN
b) WAN
c) MAN
d) BUS

Answer : D

Question. Which of the following is a type of network
a) Ring
b) Bus
c) Star
d) PAN

Answer : D

Question. VOIP stands for..........
a) Voice over IP
b) Video over IP
c) Viruses over IP
d) Virtual over IP

Answer : A

Question. The first web browser is
a) Mosaic
b) Netscape
c) Internet explorer
d) Collabra

Answer : A

Question. LAN stands for...............
a) Limited Area Network
b) Logical Area Network
c) Local Area Network
d) Large Area Network

Answer : C

Question. .......... are set of rules and procedures to control the data transmission over the internet
a) IP address
b) Domains
c) Protocol
d) Gateway

Answer : C

Question. NOS stands for
a) Node operating system
b) Non-open software
c) Network Operating system
d) Non-operating software

Answer : C

Question. ............... are system software to facilitate editing of text and data
a) MS Word
b) Editors
c) PowerPoint
d) MS publisher

Answer : B

Question. Computers, combine both measuring and counting, are called :
a) Analog
b) Digital
c) Hybrid
d) All of these

Answer : C

Question. In world today, most of the computers are :
a) Digital
b) Hybrid
c) Analog
d) Complex

Answer : A

Question. Physical structure of computer is called :
a) Software
b) Hardware
c) Human ware
d) All of these

Answer : B

Question. In which type of computer, data are represented as discrete signals.
a) Analog computer
b) Digital computer
c) both
d) Hybrid Computer

Answer : B

Question. Which of the following is available in the form of a PC now?
a) Mainframe
b) Microcomputer
c) Minicomputer
d) Both (B) & (C)

Answer : B

Question. PARAM is an example of:
a) Super computer
b) PC
c) Laptop
d) PDA

Answer : A