Computer Hardware and Networking MCQ Quiz Hub

1. The digital multimeter is set for DC, Ohm and 20k. You will read _____ while measuring a good 2 amp fuse.
2
0
0.02
0.2

2. IDE cables have how many pins?
25
50
100
40

3. Which of the following statements is true?
Two SCSI devices connected to a computer can have the same ID if they are both hard drives.
Each SCSI device must have its own ID
All SCSI devices must have the same ID
SCSI ID's are irrelevant

4. What is the recommended way to fix the registry description for the printer driver
Delete the spool file
Run regedit.exe and remove any reference to the printers
Run sysedit.exe and remove any reference to the printers
Remove the printer driver and re¬install it

5. An important first step in troubleshooting which component in a laser printer is causing a jam is to:
note where in the paper path the paper stops
check all voltages
look up error codes
turn the printer off, then on again

6. Which of the following items would require you t.o comply with EPA disposal guidelines?
Keyboard
System board
Power supply
Battery

7. What should you replace if the brightness or contrast adjustments were malfunctioning on a laptop?
fuse
led display
adjustment switch
led display cable

8. One of the major components of a PC is the Central Processing Unit (CPU) which can be best described as:
The device that sends the monitor signals telling it what to display
The area that regulates all of the system power usage
The area where all the of the Basic input/output routines are stored
The area where all of the processing takes place

9. On a leased line installation a known good external modem shows no carrier detect light. Where is the problem most likely to be?
In the modem
In the phone line
In the computer
In the DTC equipment

10. What IRQ is used for COM 2?
4
3
2
1

11. What is the size of the reserved memory area?
64 kb
384 kb
640 kb
1024 kb

12. Which would you have to upgrade to install an EIDE drive?
RAM BIOS
A 286 CPU
Controller board
ISA motherboard

13. Dust in a computer actually increases the size of the magnetic fields inside it. This is not good, so you must occasionaiy dust, I trust. What's the best way to do this?
reverse vacuum
any small vacuum device
blow real hard on the system board
non-static compressed air

14. A parity error usually indicates a problem with
memory
hard drive
hard drive controller
I/O controller

15. What is the i/o address for com1?
3.00E+08
3bc
5f8
3f8

16. The monitor power LED is 'on' but the monitor screen is completely dark. The least likely cause of the problem is:
Defect in the computers video circuitry
Disconnected video cable
Defective monitor
System RAM problem

17. You are about to install a second IDE hard drive in a PC that has only one IDE adapter. Your first hard drive will still be the boot drive. How should the second drive be configured?
as a master
as a secondary
as a slave
as a primary

18. What is your first action when windows reports that your hard drive is developing bad sectors?
replace the hard drive
run secclean from dos
run defrag on the hard drive
run scandisk with the "thorough" option

19. In laser technology, what happens during the transfer stage?
Residual toner is transferred to the waste receptacle
The laser transfers the image from the drum to the paper.
The image is transferred from the drum to the paper
A negative charge is transferred to the surface of the drum

20. How many IRQs does a chain of USB devices require?
1
2
3
4

21. Resistance is measured in units of:
ohms
farads
helids
amperes

22. Which provides the fastest data access time?
RAM
ROM
CD-ROM
Hard disk

23. How is ink transferred to paper in common ink jet printers?
Boiling ink
Crystal
Motorized pump
Screens deflect ink on the paper into the proper positions

24. Which component must be vacuumed or replaced during preventative maintenance on a laser printer?
Scanning mirror
Toner cartridge
Ozone filter
All of the above

25. Which controller would support an external CD-ROM drive?
ESDI
ARLL
MFM
SCSI

26. In inkjet printers, what is the most common problem with the paper tray?
inconsistent printing
malfunctioning pick-up rollers
misalignment of the sheet feeder
. paper jamming on the ink cartridge

27. A customer calls and says her computer won't boot, she can hear noises and can see lights on the box, but nothing comes up on the screen, what should you take to the site to fix the problem?
hard drive
video card
power cable
power supply

28. On a dot-matrix printer, regular lube maintenance should be followed, but this component should never be lubed
Platten bearings
Carriage rails
Printhead
Paper advance bearings

29. The buffers statement is found in what file?
Config.sys
Autoexec.ncf
Autoexec.bat
Neb.cfg

30. What configuration should a Volt-Ohm meter he set to when testing a fuse?
DC volts
AC volts
Amperage
Ohms

31. What voltage does a 586 system use?
+12 volts
+ 5 volts
+ 8 volts
+3.3 volts

32. What action will correct patchy, faint, uneven or intermittent print on a dot matrix printer?
Replacing the ribbon
Replacing the timing belt
Adjusting the paper feed tension
Adjusting the tractor feed tension

33. If the voltage on pin 1 of the power supply is not in the range of _____ volts, the PC will not boot.
12:00 AM
12:00 AM
50 - 110
2.5 - 5

34. What are the most likely conditions for ESD?
Hot and dry
Hot and wet
Cold and dry
Cold and wet

35. What is the i/o address for com3?
3.00E+08
345
ff8
5.00E+08

36. The following process determines the amount of memory present, the date/ time, and which communications ports and display adapters are installed in a microcomputer?
Start-up utility test
Power on Self Test
Power up boot process
Power on start up process

37. The following process determines the amount of memory present, the date/ time, and which communications ports and display adapters are installed in a microcomputer?
Start-up utility test
Power on Self Test
Power up boot process
Power on start up process

38. A PC with a 486DX2 processor runs internally at 50Mhz. What speed would its external logic be running?
l0Mhz
25Mhz
50Mhz
100 Mhz

39. A capacitor is measured in which of the following units?
Volts
Ohms
Farads
Resistance

40. Which device uses a DMA channel?
Modem
Network Card
Sound Card
All of the above

41. Which REQUIRES an anti-static bag for transport?
Monitor
Floppy disks
Power supply
I/O controller

42. Static electricity thrives is which type of environment?
cold and humid
warm and humid
warm and dry
cold and dry

43. ESD potential decreases with the use of:
De-ionizing fans
A wrist strap
Rubber gloves with matching cap
A static meter

44. With a dot matrix printer, light then dark print is most commonly caused by:
Erratic paper advancement
Erratic ribbon advancement
Misalligned print head
Overheating print head

45. How many DMA channels are there in an AT class PC?
3
4
7
8

46. A wrist grounding strap contains which of the following:
Surge protector
Capacitor
Voltmeter
Resistor

47. Every video card must have?
CMOS
RAM
CPU
All of the above