examen 1 (ingles)

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Assessment System

Exam Viewer - Chapter 1 Exam - IT Essentials (Version 4.0)

Below you will find the assessment items as presented on the exam as well as the scoring rules associated with the item.

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1 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

Observable Description Max Value

1 correctness of response

Option 1 and Option 3 are correct.

1 point for each correct option.

0 points if more options are selected than required.

2

2 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






2

3 Which CPU architecture uses a small set of instructions that are designed to be executed rapidly?

CISC

RAID

RISC

RISK

SCSI


1 correctness of response2 points for Option 3

0 points for any other option2

4 Which type of memory is unable to have the contents modified?

DRAM

RAM

ROM

SRAM




5 Which type of memory is primarily used as cache memory?

DRAM

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RAM

ROM

SRAM




6 Which three devices are considered output devices? (Choose three.)

fingerprint scanner

headphones

keyboard

monitor

mouse

printer



Option 2, Option 4, and Option 6 are correct.

1 point for each correct option.0 points if more options are selected than required. 3

7 Which type of ROM can be reprogrammed with software while it is still physically installed in the computer?

EEPROM

EPROM

PROM

ROM




8

Refer to the exhibit. Which type of cable is shown in the graphic?

FireWire

Parallel

Serial

USB




9 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.


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It can supply power from the computer to devices.




10 What are the two connector types for the 1394a interface? (Choose two.)

2-pin

4-pin

6-pin

8-pin

9-pin

15-pin






2

11

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)




12 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




13 Which two devices are considered input devices? (Choose two.)

biometric authentication device

printer

digital camera

projector

speakers


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2

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


1 correctness of response2 points for Option 40 points for any other option

2

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 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




17 Which two form factors are commonly used to build a new computer? (Choose two.)

BTX

NLQ

ATX

CLV

ECC






2

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



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2

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






2

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



Option 1, Option 2, and Option 4 are correct.



3

22 Which two categories are used to classify CPU architecture? (Choose two.)

ATX

BTX

CISC

PnP

RISC

ZIF




1 point for each correct option.0 points if more options are selected than required. 2


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examen 1 (ingles)

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