Which of the following statements are correct about cyber attacks?

1.Spyware prevents access to a website.

2.Virus is self-replicating malicious code on a computer.

3.Denial-of-service (DoS) captures all data entered using a keyboard to obtain personal data.

A1 only

B2 only ✓ Correct

C3 only

D1 & 2 only

Correct answer: (B) 2 only

Explanation

A virus is malicious code that copies itself and spreads through a computer, matching Statement 2.

Statement 1 mislabels spyware, which secretly gathers a user's data rather than blocking website access.

Blocking access to a website describes denial of service, not spyware.

Statement 3 wrongly describes denial of service, which floods a service to make it unavailable.

Capturing every keystroke to steal personal data is instead the work of a keylogger.

Only the description of the self-replicating virus holds true among the three.

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