CBSE Class 6 Computer Science Computer & Network Security MCQs

Question. If your computer keeps rebooting itself, then it is likely that _______ ?
a) It has a virus
b) It does not have enough memory
c) There is no printer
d) There has been a power surge

Answer : D

Question. Abuse messaging systems to send unsolicited is ?
a) phishing
b) spam
c) malware
d) firewall

Answer : B

Question. Which virus spreads in application software ?
a) Macro virus
b) Boot virus
c) File virus
d) Anti- virus

Answer : A

Question. Physical security is concerned with protecting computer hardware from human tampering and natural disasters and __________ security is concerned with protecting software from unauthorised tampering or damage ?
a) data
b) cyber
c) Internet
d) metaphysical

Answer : B

Question. __________ are often delivered to a PC through an email attachment and are often designed to do harm ?
a) Viruses
b) Spam
c) Portals
d) Email messages

Answer : A

Question. An anti-virus is a ?
a) program code
b) computer
c) company name
d) application software

Answer : D

Question. Which one of the following is a key function of firewall ?
a) Monitoring
b) Deleting
c) Copying
d) Moving

Answer : A

Question. A ____ is a small program embeded inside of a GIF image ?
a) web bug
b) cookie
c) spyware applications
d) spam

Answer : A

Question. It is a self-replicating program that infects computer and spreads by inserting copies of itself into other executable code or documents ?
a) Keylogger
b) Worm
c) Virus
d) Cracker

Answer : C

Question. What is the most common way to get a virus in your computer’s hard disk ?
a) By installing games from their CDROMS
b) By uploading pictures from mobile phones to the computer
c) By opening emails
d) By sending emails

Answer : C

Question. Passwords enable users to – ?
a) get into the system quickly
b) make efficient use of time
c) retain confidentiality of files
d) simplify file structures

Answer : C

Question. You can protect sensitive data from prying eyes using ______ ?
a) Encryption
b) Passwords
c) File locks
d) File permissions

Answer : A

Question. Trend Micro’ is a ?
a) virus program
b) anti-virus software
c) just a program
d) All of these

Answer : B

Question. What is the most common way to get a virus in your computer’s hard disk ?
a) By installing games from their CDROMS
b) By uploading pictures from mobile phones to the computer
c) By opening emails
d) By sending emails

Answer : C

Question. The main reason to encrypt a file is to ?
a) reduce its size
b) secure it for transmission
c) prepare it for backup
d) include it in the start-up sequence

Answer : B

Question. The first PC virus was developed in ?
a) 1980
b) 1984
c) 1986
d) 1988

Answer : C

Question. A person who uses his or her expertise to gain access to other people’s computers to get information illegally or do damage is a _______ ?
a) spammer
b) hacker
c) instant messenger
d) All of these

Answer : B

Question. There are several primary categories of procedures. Which of the following is not a primary category of procedures ?
a) Testing
b) Backup and recovery
c) Firewall development
d) Design

Answer : C