Question

What other way can a virus scanner work?

A) by comparing files against a list of known virus profiles
B) by blocking files that copy themselves
C) by blocking all unknown files
D) by looking at files for virus-like behavior

Answer 1

A virus scanner can work by comparing files against a list of known virus profiles, blocking files that copy themselves, blocking all unknown files, or looking at files for virus-like behavior.

Step-by-step explanation:

A virus scanner can work by comparing files against a list of known virus profiles, by blocking files that copy themselves, by blocking all unknown files, or by looking at files for virus-like behavior.

For example, when a virus scanner compares files against a list of known virus profiles, it checks if the contents of the file match any known patterns of viruses. If there is a match, the file is flagged as a potential virus. Similarly, a virus scanner can block files that copy themselves by detecting if a file tries to create multiple copies of itself.

Overall, virus scanners use various techniques to identify and block viruses, ensuring the protection of computer systems.