CBSE Class 7 Computer Science Computer & Network Security MCQs

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) hacker
b) analyst
c) instant messenger
d) programmer

Answer : A

Question. A program designed to destroy data on your compute which can travel to infect other computers, is called is ?
a) disease
b) tarpedo
c) hurricane
d) virus

Answer : D

Question. __________ are attempts by individuals to obtain confidential information from you by falsifying their identity ?
a) Phishing trips
b) Computer viruses
c) Special function cards
d) Scanners

Answer : A

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

Answer : A

Question. Which one of the following is a cryptographic protocol used to secure http connection ?
a) Stream Control Transmission Protocol (SCTP)
b) Transport Layer Security (TLS)
c) Explicit Congestion Notification (FCN)
d) Resource Reservation Protocol (RRP)

Answer : B

Question. Passwords enables user to ?
a) get into the system quickly
b) make efficient use of time
c) retain confidentiality of files
d) simplify file structure

Answer : C

Question. Hackers ?
a) all have the same motive
b) is another name for users
c) may legally break into computers as long as they do not do any damage
d) break into other people’s computers

Answer : D

Question. The first computer virus is ?
a) creeper
b) PARAM
c) the famous
d) HARLIE

Answer : A

Question. Like a virus, it is a self-replicating program. It also propagates through computer network ?
a) Spyware
b) Worm
c) Cracker
d) phishing scam

Answer : B

Question. A time bomb occurs during a particular ?
a) data or time
b) logic and data
c) only time
d) All of the above

Answer : A

Question. First boot sector virus is ?
a) computed
b) mind
c) brain
d) Elk Cloner

Answer : C

Question. Hackers often gain entry to a network be pretending to be at a legitimate computer ?
a) spoofing
b) forging
c) IP spoofing
d) None of these

Answer : C

Question. A program designed to destroy data on your computer which can travel to “infect” other computers is called a __________ ?
a) disease
b) torpedo
c) hurricane
d) virus

Answer : D

Question. A hacker contacts your phone or E-mails and attempts to acquire your password is called ?
a) spoofing
b) phishing
c) spamming
d) buging

Answer : B

Question. The phrase ____ describes viruses, worms, trojan horse attack applets and attack scripts ?
a) malware
b) spam
c) phishing
d) virus

Answer : A

Question. Unauthorised copying of software to be used for personal gain instead of personal backups is called ?
a) program thievery
b) data snatching
c) software piracy
d) program looting

Answer : C

Question. Why is it unethical to share copyrighted files with your friends ?
a) It is not unethical, because it is legal.
b) It is unethical because the files are being given for free.
c) Sharing copyrighted files without permission breaks copyright laws.
d) It is not unethical because the files are being given for free.

Answer : C

Question. Some viruses have delayed payload, which is sometimes called a ?
a) time
b) anti-virus
c) bomb
d) All of these

Answer : C

Question. Which one of the following would be considered as a way that a computer virus can enter a computer system ?
a) Opening an application previously installed on the computer
b) Borrowed copies of software
c) Viewing a website without causing any additional transactions
d) Running antivirus programs

Answer : C

Question. Firewalls are used to protect against _________ ?
a) Unauthorised Attacks
b) Virus Attacks
c) Data Driven Attacks
d) Fire Attacks

Answer : A