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Computer Studies SG

Last updated 04 September 2006

Software viruses, maintenance and housekeeping test - 35 marks

Onsite learners do the test on paper.  Online learners do the test on paper and fax to school, or submit it as a file. 

  1. When a computer is switched on, control is automatically given to the … 1.1 … The computer then does a self-test and compares all components against the record in the … 1.2 … If any components are faulty a(n) … 1.3 … message will be displayed on the screen. The … 1.4 … program then decides if the … 1.5 … from the C drive must be loaded. [5]
  2. List the SEVEN steps in the booting up process in the correct order. You must have at least five steps in the correct order to have the 4 marks. [4]
  3. What is the function of a driver?  Explain with examples. [2]
  4. Name TWO common utility progams found on computers.  [2]
  5. Name TWO tools found in Windows computers which help you maintain and optimise your system. [2]
  6. Describe THREE basic types of viruses. [3]
  7. What is the difference between a worm virus and a Trojan virus?  [3]
  8. How does antivirus software find and delete a virus.[2]
  9. What happens when a virus is detected? [2]
  10. What does the term layers refer to? Explain with examples. [2]
  11. It is advisable to regularly make a backup of your hard drive on your PC because information can get lost easily.
    1. What does the term backup mean?  (1)
    2. Explain why it is not feasible to backup your hard drive onto a series of stiffy disks. (1)
    3. Explain what other measures you can take if it is not feasible to backup your hard drive onto a series of stiffy disks.  List both the hardware and the software needed. (2) [4]
  12. To further prevent the loss of items stored on a hard disk, you regularly should perform preventive maintenance such as defragmenting.
    1. What is the function of a disk defragmenter? (1)
    2. Give one advantage of a hard disk that has been defragmented. (1) [2]
  13. You find that the hard disk of your computer is nearly full.  How can you free up space on the hard disk?  Give two steps which you could follow and discuss each one in detail. [2]

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