Effects, Symptoms & Prevention of Computer Viruse

Sarah receives an email from an unknown sender with the subject "Check out these leaked exam answers!" and a file attachment named "answers.exe". What should she do?

• Open the attachment to see if the answers are real.

• Forward the email to her classmates to help them.

• Delete the email immediately without opening the attachment.

• Reply to the sender asking for more information.

James notices that his laptop, which used to be very fast, now takes ten minutes to open a simple Word document. This is an example of:

• A hardware upgrade.

• Slow system performance.

• Power saving mode.

• A weak internet connection.

Tobi wants a popular game for free and downloads a "cracked" version from an unknown website. Which prevention rule is he breaking?

• Scan USB drives before use.

• Keep the operating system updated.

• Use licensed software only.

• Install Windows Defender.

Amaka spent all night writing her history essay. This morning, the folder where she saved it is completely empty. What symptom is this?

• Frequent pop-up messages.

• Missing files or folders.

• System crash.

• Antivirus update.

While browsing the web, Leo’s screen is suddenly covered in dozens of flashing windows and advertisements that he cannot close. This is called:

• System Performance.

• Licensed Software.

• Frequent pop-up messages.

• Operating System Update.

Amina borrows a USB drive from a friend to copy a movie. What is the first thing she should do before opening the files?

• Format the drive immediately.

• Scan the USB drive with antivirus software.

• Restart her computer.

• Copy the files to her desktop first.

Every time Daniel tries to open his video editing software, the program closes itself unexpectedly after a few seconds. This is an example of:

• Damage to software.

• Real-time protection.

• System scanning.

• Loss of data.

Kemi has antivirus software installed, but she hasn't updated its "virus definitions" in six months. Why is her computer still at risk?

• The software has expired.

• The antivirus cannot detect new viruses.

• Antivirus software only works for one month.

• She needs to buy a new computer.

While doing homework, Peter’s computer suddenly shuts down and restarts on its own. This is a sign of:

• A computer freeze.

• A system crash or automatic restart.

• A successful antivirus scan.

• Power saving features.

Which of the following is NOT an example of antivirus software listed in your lesson note?

• Kaspersky.

• Google Chrome.

• McAfee.

• Windows Defender.