Question

question 9 of 10
most personal computers have a firewall and virus protection. why are these security programs needed?

a. they make sure digital information is sent out as a digital signal.

b. they keep analog signals from entering the computer from the internet.

c. they keep harmful programs from entering the computer from the internet.

d. they keep people from storing personal information on the computer.

Explanation:

Firewalls monitor and block unauthorized network traffic, while virus protection detects and removes malicious software. Both tools are designed to defend against harmful programs and threats that can access a computer via the internet. Options A, B, and D describe functions unrelated to these security programs: A refers to digital signal transmission, B refers to analog signal blocking (not relevant to modern internet traffic), and D incorrectly claims they restrict personal data storage.

Answer:

C. They keep harmful programs from entering the computer from the Internet.