07 Jun If you wanted to back up only files that have changed or been created since the last backup, which type of
Question
Chapter Exercises
Multiple Choice
Select the best answer.
1. If you wanted to back up only files that have changed or been created since the last backup, which type of backup would you perform?
a. child
b. normal
c. incremental
d. differential
2. A ______ is a malicious logic program that replicates by creating copies of itself, often via e-mail, until it uses up system resources.
a. Trojan horse
b. worm
c. macro virus
d. polypartite virus
3. On a Windows XP computer, documents and other user-created files should be kept in the _________ folder.
a. User Documents
b. root directory
c. Users
d. My Documents
4. Which of these items should not be in your PC toolkit with floppy disks and CD-ROMs?
a. magnetized screwdriver
b. flat-head screwdriver
c. tweezers
d. ground bracelet
5. If you receive an e-mail with an attachment named as follows, which is most likely an infected file?
a. report.doc
b. Jan2006profits.xls
c. name.txt.vbs
d. logo.jpg
Write the word or phrase to fill in the blank in each of the following questions.
1. Antivirus software detects a known virus by looking for distinguishing characteristics called a _________, which is a known pattern of virus code.
2. A __________ backup backs up files that have changed or been created since the last full backup.
3. ____________ is a program that performs a specific task, usually related to managing system resources or identifying a problem with a PC.
4. ___________, such as PC-Technician, generally is used to identify hardware problems.
5.Having a _____________ plan can help prevent computer failures and reduce repair costs and downtime.
Match the terms with their definitions.
| __ 1. Philips-head | a. type of screwdriver, rated with a size such as T15 |
| __ 2. quarantine | b. program that is activated when a certain condition is detected |
| __ 3. malicious logic program | c. creation of a complete image or copy of a computer’s hard drive |
| __ 4. logic bomb | d. type of screwdriver, also called a cross-head |
| __ 5. multi-partite virus | e. an area of a hard disk to store an infected file until the infection can be removed |
| _ 6. payload | f. program that acts without a user’s knowledge to change computer operations and do damage |
| __ 7. 3-pronged parts retriever | g. virus that infects both boot records and program files |
| __ 8. macro | h. a spring-loaded device with three wire prongs to pick up small items |
| __ 9. Torx | i. small program in a document that is executed when the document is loaded or by pressing a key combination |
| __ 10. disk cloning | j. destructive event or prank that a virus is created to deliver |
Write a brief answer to each of the following questions.
1. List the five main types of viruses and explain how each of them infects a computer.
2. List at least five safe computing tips you should follow to avoid risk of virus, worm, and Trojan horse infection.
3. Describe the steps you would take to isolate the source of a computer problem.
4. List and describe five important preventive maintenance tasks.
5. Following the fundamental rule that you should trade good for suspected bad to isolate a problem, describe the steps you would take to troubleshoot a problem with the monitor.
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