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الاثنين، 21 مارس، 2011

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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3 التعليقات:

  1. مشكور كتير على هذا المجهود الرائع

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  2. تشكر بجد
    وياريت امتحان شبتر 2

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  3. ..............شكرا

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