Question

1. a boot sector virus will damage

application programs.
files needed for boot up.
antivirus programs.
user files.

1. what is a firewall?

hardware and/or software that blocks wanted files
hardware and/or software that allows virus attacks
hardware and/or software that blocks unwanted traffic
hardware and/or software that allows hackers in

Explanation:

• Question 3: A boot - sector virus specifically targets the boot sector of a storage device. The boot sector contains files and code necessary for the computer to start (boot up). Application programs, antivirus programs, and user files are not the primary targets of a boot - sector virus.
• Question 4: A firewall is a security measure. Its main function is to monitor and control incoming and outgoing network traffic. It blocks unwanted traffic (such as malicious network packets from hackers or unauthorized access attempts) while allowing legitimate traffic. It does not block wanted files (as in option 1), allow virus attacks (option 2), or allow hackers in (option 4).

Answer:

1. files needed for boot up.
2. hardware and/or software that blocks unwanted traffic.