Understanding Computer Viruses

What is a computer virus?

• A destructive software program.

• A type of hardware.

• A network protocol.

• A computer application.

What are the five common symptoms of virus infection?

• The computer runs slower than usual.

• The computer crashes and restarts every few minutes.

• Applications do not work correctly.

• Unusual error messages appear.

• You cannot print items correctly.

How does a computer virus spread?

• It activates when the infected program is started.

• It spreads through physical connections.

• It requires user intervention to spread.

• It cannot spread on its own.

What is a Boot Sector Virus?

• Infects the boot sector accessed at startup.

• Overwrites files or programs.

• Infects user-created macro files.

• Changes its code each time it spreads.

What is the main difference between worms and viruses?

• Worms self-replicate, viruses need a host.

• Worms corrupt files, viruses do not.

• Worms are slower than viruses.

• Worms are a type of virus.

What is a logic bomb?

• A program that lies dormant until triggered.

• A type of virus that spreads rapidly.

• A software that protects against viruses.

• A hardware component that fails.

What is the purpose of antivirus software?

• To prevent, detect, and remove malicious programs.

• To enhance computer performance.

• To manage network traffic.

• To create backups of data.

What are the best practices to protect against viruses?

• Use licensed software only.

• Avoid opening email attachments from unknown senders.

• Protect your computer with strong passwords.

• Download files only from trusted websites.

• Update antivirus software regularly.

What is a Trojan horse in computer security?

• A type of hardware used for security.

• A malicious program disguised as legitimate software.

• A method of data encryption.

• A network security protocol.

What is the function of a firewall?

• To enhance the speed of the internet connection.

• To store data securely.

• To monitor and control incoming and outgoing network traffic.

• To create backups of files.