Computer Viruses: Symptoms and Prevention
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Questions and Answers

What is a computer virus?

  • A tool designed to increase the speed of a computer
  • A harmless software used to gather sensitive information
  • A piece of software that can replicate itself and harm computer systems (correct)
  • A program designed to enhance computer performance

    • Which of the following is a symptom of a virus infected computer?

  • Files opening normally
  • Corrupted hard disk data (correct)
  • Shorter boot time than normal
  • Faster system performance

    • What is malware?

  • Software intended to speed up computer performance
  • Software designed to enhance computer security
  • Software used to disrupt computer operation or gain unauthorized access (correct)
  • Software used to gather non-sensitive information

    • Where does a boot sector virus reside?

    <p>In the boot sector of a floppy disk or the master boot record of a hard disk</p> Signup and view all the answers

    Which of the following is an example of malware?

    <p>Ransomware</p> Signup and view all the answers

    What does a file virus do?

    <p>Attaches itself to program files and loads into memory when the infected program is run</p> Signup and view all the answers

    What is a logic bomb?

    <p>A virus that activates when it detects a certain condition</p> Signup and view all the answers

    What is scare-ware designed to do?

    <p>Trick victims into purchasing and downloading useless and potentially dangerous software</p> Signup and view all the answers

    What is spyware?

    <p>Software that aids in gathering information about a person or organization without their knowledge</p> Signup and view all the answers

    How are viruses spread through networks?

    <p>Through downloads from the internet</p> Signup and view all the answers

    What is adware frequently used to describe?

    <p>A form of malware that presents unwanted advertisements to the user of a computer</p> Signup and view all the answers

    What does a time bomb do?

    <p>Activates on a particular date</p> Signup and view all the answers

    What does a Trojan horse do?

    <p>Hides within or looks like a legitimate program</p> Signup and view all the answers

    What is the purpose of scare-ware?

    <p>To trick victims into purchasing and downloading useless and potentially dangerous software</p> Signup and view all the answers

    How do viruses spread through E-mail attachments?

    <p>By tricking victims into purchasing and downloading useless and potentially dangerous software</p> Signup and view all the answers

    What is the purpose of adware?

    <p>To present unwanted advertisements to the user of a computer</p> Signup and view all the answers

    Study Notes

    Computer Viruses and Malware

    • A computer virus is a type of malicious software that replicates itself by attaching to other programs or files on a computer.

    Symptoms of a Virus Infected Computer

    • Unexpected system crashes or freezes
    • Slow system performance
    • Unusual error messages or pop-ups
    • Unknown programs or files on the system

    Malware

    • Malware is a broad term that includes all types of malicious software, including viruses, worms, Trojan horses, and spyware.

    Boot Sector Virus

    • A boot sector virus resides on the boot sector of a hard drive, which is the first sector that the computer reads when it boots up.

    Examples of Malware

    • Viruses
    • Worms
    • Trojan horses
    • Spyware
    • Adware
    • Scareware

    File Virus

    • A file virus attaches itself to a file on a computer and replicates itself when the infected file is executed or opened.

    Logic Bomb

    • A logic bomb is a piece of code that is designed to cause harm or damage when a specific set of conditions are met.

    Scareware

    • Scareware is designed to trick users into purchasing or downloading unnecessary software or services by creating fake warnings or alarms.

    Spyware

    • Spyware is a type of malware that secretly monitors and collects user data, such as browsing habits or personal information, without the user's knowledge or consent.

    Spreading Viruses through Networks

    • Viruses can spread through networks by exploiting vulnerabilities in operating systems or software, or by using infected email attachments or file downloads.

    Adware

    • Adware is frequently used to describe software that displays unwanted advertisements or pop-ups on a user's computer.

    Time Bomb

    • A time bomb is a piece of code that is designed to cause harm or damage at a specific date or time.

    Trojan Horse

    • A Trojan horse is a type of malware that disguises itself as a legitimate program or file, but actually contains malicious code.

    Purpose of Scareware

    • The purpose of scareware is to trick users into purchasing or downloading unnecessary software or services.

    Spreading Viruses through Email Attachments

    • Viruses can spread through email attachments by infecting files or programs that are downloaded or opened from an email.

    Purpose of Adware

    • The purpose of adware is to display unwanted advertisements or pop-ups on a user's computer, often to generate revenue for the creators.

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    Quiz Team

    Description

    Test your knowledge about computer viruses and their symptoms with this quiz. Learn about the characteristics of computer viruses and how to prevent them from infecting your system.

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