IT Essential v4.1 Chapter 1

IT Essential v4.1 Chapter 1
1.Which type of ROM can be reprogrammed with software while it is still physically installed in the computer?
*ROM
 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