Computer Hardware Interview Questions and Answers | Basic Computer Knowledge


A Type 1 PCMCIA card is:

   A.) The same physical size as other PCMCIA cards but configured differently
   B.) The thinnest PCMCIA card, measuring 3.5mm in thickness
   C.) An old standard that is not compatible with the newest laptops
   D.) The thickest PCMCIA card, measuring 10.5mm in thickness

Answer: Option 'B'

The thinnest PCMCIA card, measuring 3.5mm in thickness


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


Resistance is measured in?

   A.) Volts
   B.) Amps
   C.) Watts
   D.) Ohms

Answer: Option 'B'



You are testing the resistance in Ohms of a fuse on a 5 amp system. If the fuse is good, the meter should read?

   A.) 0.0
   B.) 0.5
   C.) 1.0
   D.) 1.5

Answer: Option 'A'



Your modem does not respond when you try to dial out. You try another modem on another computer and get the same result. What is the most likely problem?

   A.) defective modem
   B.) bad phone line
   C.) software bug
   D.) defective computer

Answer: Option 'B'

​bad phone line


During the normal PC boot process, which of the following is active first?

   A.) CMOS
   D.) Hard disk information

Answer: Option 'C'



What is the modem hang up command?

   A.) ATH
   B.) ATZ
   C.) ATX
   D.) ATHU

Answer: Option 'A'



During preventative maintenance on a dot matrix printer, do NOT lubricate :

   A.) Print head pins
   B.) Platen assembly
   C.) Print head pulley
   D.) Paper advance gear bushings

Answer: Option 'A'

Print head pins


When not in use, it is very important to keep 5 VA diskettes in _______.

   A.) In a plastic bag
   B.) Their protective sleeves
   C.) In the floppy drive
   D.) On a shelf in an upright position

Answer: Option 'B'

Their protective sleeves


What is the result of adding an IP address to the DNS server search order

   A.) It restricts browsing to that DNS server
   B.) It overrides the local systems IP address
   C.) It tells the local system where the DNS Server is located
   D.) It tells the DNS Server where the local system is located

Answer: Option 'C'

It tells the local system where the DNS Server is located


A keyboard locks up intermittently even when replaced with a new keyboard. What is the LEAST likely cause of the problem?

   A.) The motherboard
   B.) The keyboard connector
   C.) A second bad keyboard
   D.) The keyboard controller chip

Answer: Option 'C'

​A second bad keyboard


Voltage is measured:

   A.) in parallel
   B.) in series
   C.) after breaking the circuit
   D.) after checking resistance

Answer: Option 'A'

in parallel


What problem can occur if a printer cable is to close to a power cable?

   A.) no affect
   B.) parity error
   C.) ESD Electrostatic Discharge
   D.) EMI Electromagnetic Interference

Answer: Option 'D'

EMI Electromagnetic Interference


To install a second IDE drive into a computer, you must:

   A.) Set the master-slave jumper to slave on the second drive
   B.) Verify that you define the new drive as D: in the CMOS setup
   C.) Use the IDE configuration software to set the new drive as slave
   D.) Verify that you attach the drive to the connector at the end of the ribbon cable

Answer: Option 'A'

Set the master-slave jumper to slave on the second drive


A static jolt of as little of _____ volts can fry most any PC integrated circuit.

   A.) 10
   B.) 20
   C.) 30
   D.) 40

Answer: Option 'C'



A human cannot feel a static discharge as high as _____ volts.

   A.) 20
   B.) 200
   C.) 2000
   D.) 20000

Answer: Option 'B'



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


How many DMA channels are there in an AT class PC?

   A.) 1
   B.) 3
   C.) 5
   D.) 8

Answer: Option 'D'



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

   A.) In the modem
   B.) In the computer
   C.) In the phone line
   D.) In the DTC equipment

Answer: Option 'C'

In the phone line


After you service a laser printer, you notice dirty print. Which of the following would correct the problem?

   A.) Clean the developer tank
   B.) Run several blank pages
   C.) Reset the printer
   D.) Clean the laser diode

Answer: Option 'B'

Run several blank pages


What is the size of the reserved memory area?

   A.) 54 kb
   B.) 384 kb
   C.) 544 kb
   D.) 724 kb

Answer: Option 'B'

384 kb


To view any currently running Terminate Stay Resident (TSR's) programs you could type:

   A.) Memory
   B.) MEM
   C.) SYS /M
   D.) Memmaker

Answer: Option 'B'



Which values are held in CMOS for the hard drive

   A.) IRQ
   B.) size (heads, cylinders, sectors)
   C.) Virus alert
   D.) Free space

Answer: Option 'B'

size (heads, cylinders, sectors)


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?

   A.) reverse vacuum
   B.) non-static compressed air
   C.) use a lint-free cloth and wipe gently
   D.) any small vacuum device

Answer: Option 'B'

​non-static compressed air


Which device should not be plugged into a standard ups?

   A.) ink-jet printer
   B.) laser printer
   C.) monitor
   D.) an external modem

Answer: Option 'B'

laser printer

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