Review Questions for Test # 3

 

Video:

 

  1. What are the two necessary components for video output?
  2. What is the function of a video or graphics card?
  3. What does RAMDAC refer to?
  4. What does 1,024 x 768 refer to?
  5. If a monitor is set to display 16 bit color, how many colors can it display?
  6. What is the main component on the video card that determines the resolution and color depth that can be displayed?
  7. What are the 3 colors emitted by the cathode ray tube?
  8. What does dot pitch determine between the pixels on the monitor?
  9. What does pixel stand for?
  10. Which monitor would probably give a sharper image quality on the display, a .25 mm dot pitch or a .28 mm dot pitch?
  11. How is the viewable display of a monitor measured?
  12. What does the term refresh rate refer to?
  13. Should the monitor have a high or low refresh rate?
  14. What does LCD stand for?
  15. What is the aspect ratio for a video monitor?

 

Multimedia

 

  1. What is the name of the processor instructions built into the Pentium III chip that enhances multimedia capability of the PC system?
  2. What is the name of the processor instructions built into the AMD chip that enhances multimedia capability of the PC system?
  3. What read only device is highly responsible for delivering multimedia applications to the PC system?
  4. What does WORM stand for and which CD technology is most closely associated with it?
  5. What do pits and lands refer to?
  6. What is the data transfer rate of a CD-ROM that operates at a 1x speed?
  7. What is the data transfer rate of a CD-ROM that operates at a 50x speed?
  8. What does CLV or Constant Linear Velocity mean?
  9. What does CAV or Constant Angular Velocity mean?
  10. How does a CD-R or CD-RW drive write data to a CD? (Think direction)
  11. Why can a CD-R or CD-RW disk can be written to? (Think composition)
  12. How much data can a standard CD hold in Mbytes?
  13. How much data can a DVD disc hold in Gbytes?
  14. Why can a DVD hold much more data than a standard CD?
  15. What does a sound card do? (2)
  16. Which IRQ is usually used for the sound card?
  17. What does sampling mean?
  18. What is the difference between an 8 bit sample as compared to a 16 bit sample?

Troubleshooting

 

1.     When working with hardware, when is it important not to ground yourself?

2.     In Windows 9x, what key do you press to enter the safe mode on startup?

3.     What is ESD and how do you protect yourself against it?

4.     What are 3 possible questions that you should ask to a user who is experiencing a computer that will not power on?

5.     Name at least two actions you would take when getting the message “OS CANNOT BE FOUND.”

6.     What is the value of installing additional video RAM?

7.     What is the rule to follow when connecting a Power Supply leads (P8 and P9) to the motherboard?

8.     What 4 components should you first check if the system does not perform a successful POST?

9.     What is the key to depress to view the startup or boot-up options on a Windows 9x system?

10.  A user complains that his PC will not turn on. What is the first thing you should do to confirm the problem?

 

Viruses

 

1. Name 2 anti-virus software packages?

2. Why should you run a virus scan on the bootable disk that you are using for troubleshooting?

3. What are three virus types according to their cloaking techniques?

4. What are three ways to “catch” a virus? (Pertaining to PC’s or course)

5. List 5 symptoms or problems that may indicate that a virus is present.

6. Name at least one of the virus types that you researched.

7. Why is important to update your virus definitions on a regular basis?

8. What is a virus hoax? Are they malicious or dangerous to your PC?

9. What is the definition of a virus?

10.What is a worm?

    1. What is a Trojan horse virus?