Computer Security Quiz

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What is the primary method through which computer viruses replicate and spread?

By exploiting social engineering tactics in email communications

By encrypting user files to launch a ransom demand

By altering system settings to allow malicious downloads

By inserting themselves into executable programs or scripts (correct)

What is a primary characteristic that distinguishes Trojans from computer viruses?

Trojans replicate independently without user intervention

Trojans only exist as email attachments

Trojans disguise themselves as legitimate programs (correct)

Trojans are more easily detected by antivirus software

Which of the following statements about ransomware is accurate?

All ransomware attacks are easy to fix

Ransomware requires users to pay with credit cards only

Ransomware may encrypt files and demand payment to restore access (correct)

Ransomware exclusively targets only operating systems

What function do keyloggers serve as a type of spyware?

They record users' keystrokes to capture sensitive information Signup and view all the answers

What measure can help prevent malware infections when using removable media?

Do not run untrusted programs from removable media Signup and view all the answers

What is the purpose of device hardening?

To make devices more secure Signup and view all the answers

Why is enabling passwords on devices important?

It protects against unauthorized access in case of theft Signup and view all the answers

Which of the following is a consequence of having default or weak passwords on network devices?

Higher vulnerability to unauthorized access Signup and view all the answers

What should be done with features, services, or protocols that are not being used on a device?

They should be disabled to reduce the attack surface Signup and view all the answers

What is meant by 'removing unwanted/unnecessary software' during device hardening?

To streamline the operating environment and improve security Signup and view all the answers

What is the primary function of anti-virus software?

To detect malware and prevent it from executing Signup and view all the answers

What does 'on-access scanning' do?

Scans files when they are accessed and blocks suspicious ones Signup and view all the answers

Which of the following best describes a zero-day exploit?

An infection method that is unknown to software vendors Signup and view all the answers

What should be done first if a system is suspected to be infected with malware?

Disconnect the network link Signup and view all the answers

Which action can anti-virus software NOT typically perform when it detects malware?

Automatically upgrade the operating system Signup and view all the answers

What is a potential downside of real-time scanning in anti-virus software?

It can cause slower system performance Signup and view all the answers

Which of the following steps is NOT recommended to reduce malware infection risk?

Visiting unsavory websites with no security measures Signup and view all the answers

Which function do heuristic techniques in anti-virus software serve?

Analyzes file behavior to identify suspicious activity Signup and view all the answers

What type of scanning inspects more file types than on-access scanning when run?

Scheduled scans Signup and view all the answers

Which of these is a critical feature of Windows Defender in Windows 10?

It integrates malware protection with firewall settings Signup and view all the answers