Viruses and Firewalls Worksheet

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Directions: You have just read the article, "Viruses and Firewalls". To complete this worksheet, read each question. Then, make your choice by clicking in the box on the right you think is the correct answer. If you need to go back to find an answer, just click on the web page that is on your taskbar.

1. Which of the following answers best describes the definition of a computer virus?
    A. It is man-made. Once the virus infects the printer, it can spread throughout and may damage files and system software, including the operating system.
    B. It is man-made. Once the cold infects the computer, it can spread throughout and may damage files and system software, including the operating system.
    C. It is computer generated. Once the virus infects the computer, it can spread throughout and may damage files and system software, including the operating system.
    D. It is man-made. Once the virus infects the computer, it can spread throughout and may damage files and system software, including the operating system.

2. What is a worm?
    A. It is a program that copies itself repeatedly, for example in memory or on a network, using up computer resources and possibly shutting down the computer or network.
    B. It is a bug.
    C. It is a program that deletes itself repeatedly, for example in memory or on a network, using up computer resources and possibly shutting down the computer or network.
    D. It is a program that copies itself once, for example in memory or on a network, using up computer resources and possibly shutting down the computer or network.

3. Of the following statements, which one is true regarding a Trojan Horse?
    A. Is a program that hides within or looks like a legitimate program.
    B. A certain condition or action usually triggers the Trojan horse.
    C. A Trojan horse does not replicate itself to other computers.
    D. All of the above.

4. A computer infected by a virus, worm, or Trojan horse often has one or more of the following symptoms?
    A. Printer displays unusual message or image.
    B. Existing programs and files appear.
    C. Programs or files mysteriously appear.
    D. Program or files work properly.

5. Of the following statements, which one is true for taking precautions to protect your computer at home?
    A. Do not start a computer with removable media in the drives.
    B. Always open an email attachment.
    C. Install a virus program.
    D. None of the above.

6. What is a Denial of Service Attack (DoS)?
    A. Is an assault whose purpose is to disrupt computer access to an Internet service such as the Web or email.
    B. Is an assault whose purpose is to disrupt printer access to an Internet service such as the Web or email.
    C. Is an assault whose purpose is to disrupt computer access to a Cable service such as the Web or email.
    D. Is an assault whose purpose is to disrupt computer access to an Internet service such as the monitor or email.

7. What is a back door?
    A. Is a piece of equipment or set of instructions in a program that allow users to bypass security control when accessing a program, computer, or network.
    B. Is a program or set of instructions in a program that allow users to bypass security control when accessing a program, computer, or network.
    C. Is a program or set of instructions in a program that does not allow users to bypass security control when accessing a program, computer, or network.
    D. Is a program or set of wires in a program that allow users to bypass security control when accessing a program, computer, or network.

8. "?" is a technique intruders use to make their network or Internet transmission appear legitimate to a victim computer or network. The "?" stands for...
    A. Spying.
    B. Splitting.
    C. Spitting.
    D. Spoofing.

9. A "?" is a collection of hardware and/or software intended to protect a computer or computer network from attack. The "?" stands for...
    A. Firewall.
    B. Fire Escape.
    C. Firedoor.
    D. Firehall.

10. Firewalls are needed whenever a computer is continually connected to an "?" network. The "?" stands for...
    A. Inside.
    B. Outside.
    C. Behind.
    D. Around.

Score =

To find out what you got on this worksheet, press on the above button, "Get Score". Once you have found out your grade on this worksheet, print it out. Take your printout(s) [make sure it is your printed worksheet(s)] and place it in the Blue Basket on top of the file cabinet.


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Copyright © September, 2008. All rights reserved.