Computer Hardware Interview Questions and Answers | Basic Computer Knowledge

1.

In laser printing, there are six steps the printer follows. What comes between the conditioning phase and the developing phase?

   A.) cleaning phase
   B.) fusing phase
   C.) writing phase
   D.) transfer phase

Answer: Option 'C'

writing phase

2.

In Inkjet technology the droplets of ink are deflected by?

   A.) high pressure plates
   B.) multi directional nozzles
   C.) electro static absorbtion
   D.) electronically charged plates

Answer: Option 'B'

​multi directional nozzles

3.

Which device uses a DMA channel?

   A.) Modem
   B.) Sound Card
   C.) Network Card
   D.) All of the above

Answer: Option 'B'

Sound Card

4.

In laser technology, what happens during the transfer stage?

   A.) The image is transferred from the drum to the paper
   B.) Residual toner is transferred to the waste receptacle
   C.) The laser transfers the image from the drum to the paper
   D.) A negative charge is transferred to the surface of the drum

Answer: Option 'A'

The image is transferred from the drum to the paper

5.

How can you totally protect a PC from damage during an electrical storm?

   A.) Use a surge protector
   B.) Turn off the AC power
   C.) Disconnect the AC power cable
   D.) Disconnect all external cables and power cords

Answer: Option 'C'

​Disconnect the AC power cable

6.

You should never put floppy drives, hard drives, or even VCR tapes or cassette tapes on top of speakers (or near any other source of magnetism) because of:

   A.) EMI
   B.) IOU
   C.) EXE
   D.) FYI

Answer: Option 'A'

EMI

7.

Which common bus specification provides the fastest data transfer rate?

   A.) PCI
   B.) ISA
   C.) VL bus
   D.) All of the above

Answer: Option 'A'

PCI

8.

You have a system that periodically locks up. You have ruled out software, and now suspect that it is hardware. What should you do first that could help you narrow it down to the component at fault?

   A.) replace the RAM
   B.) replace the CPU
   C.) replace the level 2 cache SIMM
   D.) disable the CPU cache in CMOS

Answer: Option 'D'

disable the CPU cache in CMOS

9.

RTS stands for:

   A.) ready to switch
   B.) request to send
   C.) ready to start
   D.) ready to set

Answer: Option 'B'

request to send

10.

What is the first thing you could do to check for damage to a printer after receiving it?

   A.) Check the cables
   B.) Unbox it and examine it for physical damage
   C.) Run MSD diagnostics
   D.) Attach it to a PC and print something

Answer: Option 'B'

​Unbox it and examine it for physical damage

11.

A parity error usually indicates a problem with:

   A.) power supply
   B.) memory
   C.) hard drive
   D.) I/O controller

Answer: Option 'B'

​memory

12.

What beep codes could indicate a system board or power supply failure?

   A.) steady short beep
   B.) no beep
   C.) one long continuous beep tone
   D.) All of the above

Answer: Option 'D'

All of the above

13.

Pick the correct choice for the 8088 CPU.

   A.) 4 bit word size, 8 bit data path
   B.) 32 bit word size, 8 bit data path
   C.) 8 bit word size, 8 bit data path
   D.) 16 bit word size, 8 bit data path

Answer: Option 'D'

16 bit word size, 8 bit data path

14.

What does the acronym RTS represent?

   A.) Ready to start
   B.) Required to save
   C.) Request to send
   D.) Right to separate

Answer: Option 'C'

Request to send

15.

_____ help prevent power surges.

   A.) UPS system
   B.) High-grade multi-meter
   C.) Surge suppressor
   D.) Spike protector

Answer: Option 'C'

Surge suppressor

16.

On the PC side, the printer port is a:

   A.) 15 pin female serial connector
   B.) 15 pin female parallel connector
   C.) 25 pin female serial connector
   D.) 25 pin female parallel connector

Answer: Option 'D'

25 pin female parallel connector

17.

What resistance in ohms should be displayed when testing a speaker in a computer?

   A.) 256 Ohms
   B.) 64 Ohms
   C.) 16 Ohms
   D.) 4 Ohms

Answer: Option 'C'

16 Ohms

18.

Match the device driver HIMEM.SYS to its operation.

   A.) Uses expanded memory on a 80386 processor
   B.) Supports code page switching
   C.) Supports (ANSI) terminal emulation
   D.) Manages the use of extended memory

Answer: Option 'D'

Manages the use of extended memory

19.

What command is used to reset a MODEM when using the

   A.) ATZ
   B.) ATR
   C.) DTR
   D.) DCE

Answer: Option 'A'

ATZ

20.

Which should you use for cleaning Mylar-protected LCD screens?

   A.) Anti-static wipes
   B.) Non-abrasive cleanser
   C.) Ammonia window cleaner
   D.) Alcohol-impregnated wipes

Answer: Option 'B'

Non-abrasive cleanser


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