Chapter 1 - IT Essentials - PC Hardware & Software


1 Which CPU architecture uses a small set of instructions that are designed to be
executed rapidly?
CISC
RAID
RISC
RISK
SCSI

2 Which type of memory is primarily used as cache memory?
DRAM
RAM
ROM
SRAM

3 Which three devices are considered output devices? (Choose three.)
fingerprint scanner
headphones
keyboard
monitor
mouse
Printer

4 Which type of ROM can be reprogrammed with software while it is still physically
installed in the computer?
EEPROM
EPROM
PROM
ROM

5 Which two characteristics are determined by the chip set on a motherboard? (Choose two.)
maximum amount of memory that can be installed
operating system compatibility
type of connectors that will be on the motherboard
keyboard layout


6 Refer to the exhibit. Which type of cable is shown in the graphic?
FireWire
Parallel
Serial
USB

7 Which important feature is offered by the USB standard?
A single USB connection to a computer can support up to 255 separate devices.
It offers rates of around 580 Mb/sec in low-speed mode.
It allows up to 920 Mb/sec in the 2.0 version.
It can supply power from the computer to devices.

8 What are the two connector types for the 1394a interface? (Choose two.)
2-pin
4-pin
6-pin
8-pin
9-pin
15-pin

9 Which type of memory is unable to have the contents modified?
DRAM
RAM
ROM
SRAM


10 Refer to the exhibit. What is the maximum length of the cable presented in the
graphic, which is commonly used for connecting a computer to a printer?
15 ft (4.5 m)
20 ft (6 m)
27 ft (8 m)
30 ft (9 m)

11 Which type of computer resources are direct lines to the processor used by computer components to request information from the CPU?
DMAs
I/O addresses
IRQs
memory addresses

12 Which two activities are normally controlled by the Northbridge part of the chip set?
(Choose two.)
communication between the CPU and the I/O ports
access to the RAM
communication between the CPU and the hard drive
access to the video card
communication between the CPU and the sound card

13 Which two devices are considered input devices? (Choose two.)
biometric authentication device
printer
digital camera
projector
speakers

14 A technician needs to back up 4 GB of data using a single storage medium. Which
medium can hold the entire 4 GB on a single disc?
floppy disc
CD-RW
CD-R
DVD+/-R

15 A technician is helping a customer compare two hard drives. Which unit of
measurement is used for the hard drive speed?
revolutions per minute
gigabytes
pages per minute
clusters per minute

16 Which two form factors are commonly used to build a new computer? (Choose two.)
BTX
NLQ
ATX
CLV
ECC

17 Which two categories are used to classify CPU architecture? (Choose two.)
ATX
BTX
CISC
PnP
RISC
ZIF

18 Which two characteristics of a motherboard can be determined by the form factor?
(Choose two.)
type of processor supported
color
size
maximum memory supported
shape

19 PATA data cables are available in two different types. The types are distinguished by the number of conductors. Which two types are available? (Choose two.)
6
40
68
80
120

20 How many conductors are found in a SATA data cable?
3
4
7
10
12

21 Which three system resources are commonly used for communication between the
CPU or memory and other components in the computer? (Choose three.)
IRQ
DMA
UDP
I/O address
USB
PnP

22 A technician has been asked to install memory that detects multiple bit errors and corrects single bit errors in memory. Which type of memory should be installed if the motherboard supports these features?
parity
ECC
fault tolerant
CRC

Is it usefull? Please leave your comment!


7 comments:

  1. It is useful for student.Good...

    ReplyDelete
  2. These Q ans A are brilliant, just need chapters 4 through to 10 lol thanks ;0)let me know if you have them, get me on odilarr@hotmail.com

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  3. do you have the other answers???..please i would really need them:)...if you can help me i would be gratefull...send them to robi92filip@gmail.com

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  4. Hello thank you for answers , i need chapter 9 answers if you have it pls send it to me Fatontahiri22@hotmail.com

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  5. This comment has been removed by a blog administrator.

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  6. not all question and answers were in it

    ReplyDelete
  7. Thanxx aloot I found it very useful 4 me .. ^^

    ReplyDelete