IT Essential Exam Ch 1

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

* EEprom

2- Why are solid state drives reliable and therefore suitable to be installed in computers used in harsh industrial workplaces?

*They consume less power and have no moving parts.

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

*headphones

*monitor

*printer

4.Which three system resources are commonly used for communication between the CPU or memory and other components in the computer? (Choose three.)

*IRQ

*DMA

*I/O address

5.Which two activities are normally controlled by the Northbridge part of the chip set? (Choose two.)

*access to the RAM

*access to the video card

6.Which expansion slot would be used to install a video capture card in a new computer?*Peripheral Component Interconnect-Express

7.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?

*DVD+/-R

8.Which type of memory is primarily used as cache memory?

*DRAM

9.Which type of RAM chip has the fastest clock rate but consumes the least power and generates the least heat?

*DDR3 SDRAM

10.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.)

*40

*80

11.Which two characteristics are determined by the chip set on a motherboard? (Choose two.)*maximum amount of memory that can be installed

*type of connectors that will be on the motherboard

12.A technician is helping a customer compare two hard drives. Which unit of measurement is used for the hard drive speed?

*revolutions per minute

13.Which important feature is offered by the USB standard?

*It can supply power from the computer to devices.

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

*RISC

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

*ROM

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

*biometric authentication device

*digital camera

17.Which technology would be best to use for drive redundancy and data protection?

*RAID

18.Which two characteristics of a motherboard can be determined by the form factor? (Choose two.)

*size

*shape

19.What is the function of a capture card?

*enables a video signal to be recorded to the computer hard drive

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

*BTX

*ATX

21.Which type of computer resources are direct lines to the processor used by computer components to request information from the CPU?

*IRQs

22.

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

*Serial

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

*CISC

*RISC

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

*4-pin

*8-pin

25.A company employee has very important data on a computer. What RAID level should be used if the criteria include that data be written and read simultaneously and that all data be duplicated using a minimum of three drives?

*5

26.

Refer to the exhibit. Based on the advertisement that is shown, what is the native resolution of this computer system?

*1280 x 800

27.How many conductors are found in a SATA data cable?

*7

28.A customer orders a new computer and specifies an internal read-write, non-volatile storage device that uses low power, has fast access to data, and is reliable. What is a suitable storage device that meets these requirements?

*solid state drive

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