MCQs / Computer Science / Computer Security, Privacy and Ethics
Computer Security, Privacy and Ethics MCQs — Computer Science (page 2) 51 multiple-choice questions on Computer Security, Privacy and Ethics from Computer Science, each with the correct answer and, where available, a teacher's explanation. Read through them to revise the chapter, then practise the same questions one by one to test yourself.
26. Pakistan's main law against cybercrime is: HTTP Act PECA 2016 RAID 2016 SMTP 2010 Answer: B) PECA 2016
Explanation: Prevention of Electronic Crimes Act 2016.
Discuss this question
27. Gaining unauthorised access to someone's computer is: hacking formatting booting scanning Answer: A) hacking
Explanation: Hacking is breaking into systems.
Discuss this question
28. Illegal copying and distribution of software is called: software piracy debugging open source software licensing Answer: A) software piracy
Explanation: It violates copyright.
Discuss this question
29. Which is an ethical use of computers? Cyberbullying Reading others' emails without permission Using licensed software and citing sources Spreading fake news Answer: C) Using licensed software and citing sources
Explanation: Respect for IP and honesty are ethical.
Discuss this question
30. A self-replicating program that spreads through networks without needing a host file is a: Trojan horse worm virus adware Answer: B) worm
Explanation: Worms spread automatically.
Discuss this question
31. A computer virus: is a hardware fault attaches to files and replicates when the infected file is run spreads through the air improves computer speed Answer: B) attaches to files and replicates when the infected file is run
Explanation: Viruses need a host program.
Discuss this question
32. The main difference between a virus and a worm is that a worm: is always harmless is a hardware device needs a host file to spread spreads by itself without a host program Answer: D) spreads by itself without a host program
Explanation: Viruses need host files and user action.
Discuss this question
33. A virus that infects the start-up area of a disk is a: file virus macro virus boot sector virus browser hijacker Answer: C) boot sector virus
Explanation: It loads when the computer boots.
Discuss this question
34. Moral principles that govern the proper use of computers are called: topologies computer ethics protocols computer hardware Answer: B) computer ethics
Explanation: Ethics guide responsible behaviour.
Discuss this question
35. Polite and respectful behaviour on the Internet is called: spamming hacking phishing netiquette Answer: D) netiquette
Explanation: Net + etiquette.
Discuss this question
36. Using someone's personal information to impersonate them is: spamming netiquette authorization identity theft Answer: D) identity theft
Explanation: Criminals may open accounts in the victim's name.
Discuss this question
37. Using an ATM card with a PIN is an example of: two-factor authentication biometrics only authorization only single-factor authentication Answer: A) two-factor authentication
Explanation: Card (have) + PIN (know).
Discuss this question
38. A virus that changes its code each time to avoid detection is: macro polymorphic boot sector resident Answer: B) polymorphic
Explanation: Poly = many forms.
Discuss this question
39. A virus that infects Word and Excel documents is a: worm boot sector virus rootkit macro virus Answer: D) macro virus
Explanation: It uses the macro language of the application.
Discuss this question
40. Which malware does NOT replicate itself? Polymorphic virus Virus Worm Trojan horse Answer: D) Trojan horse
Explanation: Trojans rely on users installing them.
Discuss this question
41. An OTP sent to your mobile phone represents: a firewall something you know something you are something you have Answer: D) something you have
Explanation: Possession factor – your phone.
Discuss this question
42. The "Brain" virus (1986), considered the first PC virus, was created in: Tokyo, Japan New York, USA Lahore, Pakistan London, UK Answer: C) Lahore, Pakistan
Explanation: It was written by the Alvi brothers in Lahore.
Discuss this question
43. Which comes first? Authentication Authorization Both at random Neither is needed Answer: A) Authentication
Explanation: Identity must be verified before permissions are granted.
Discuss this question
44. A password or PIN is an authentication factor of type: something you are somewhere you are something you know something you have Answer: C) something you know
Explanation: Knowledge factor.
Discuss this question
45. Malware stands for: multiple wares main hardware manual software malicious software Answer: D) malicious software
Explanation: Software designed to cause harm.
Discuss this question
46. Which is a common symptom of malware infection? The keyboard becomes louder The computer becomes unusually slow and shows many pop-ups The screen becomes brighter RAM size increases Answer: B) The computer becomes unusually slow and shows many pop-ups
Explanation: Malware consumes resources and shows ads.
Discuss this question
47. The best protection against malware includes: disabling the firewall updated antivirus, OS updates and careful downloading opening all attachments using the same password everywhere Answer: B) updated antivirus, OS updates and careful downloading
Explanation: Layered precautions reduce risk.
Discuss this question
48. WannaCry (2017) was an example of: a firewall adware ransomware a boot sector virus only Answer: C) ransomware
Explanation: It encrypted files and demanded Bitcoin.
Discuss this question
49. Using an infected USB flash drive can: spread malware to your computer clean all viruses update the BIOS increase CPU speed Answer: A) spread malware to your computer
Explanation: Removable media carry infections.
Discuss this question
50. A virus that infects both the boot sector and program files is: macro polymorphic multipartite stealth Answer: C) multipartite
Explanation: It has multiple parts of attack.
Discuss this question
Previous Page 2 of 3 Next
Practise Computer Security, Privacy and Ethics MCQs
More Computer Science chapters