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الاثنين، 21 مارس، 2011

.Which type of ROM can be reprogrammed with software while it is still physically installed in the computer?*ROM2.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*printer4.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 address5.Which two activities are normally controlled by the Northbridge part of the chip set? (Choose two.)*access to the RAM*access to the video card6.Which expansion slot would be used to install a video capture card in a new computer?*Peripheral Component Interconnect-Express7.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+/-R8.Which type of memory is primarily used as cache memory?*DRAM9.Which type of RAM chip has the fastest clock rate but consumes the least power and generates the least heat?*DDR3 SDRAM10.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*8011.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 motherboard12.A technician is helping a customer compare two hard drives. Which unit of measurement is used for the hard drive speed?*revolutions per minute13.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?*RISC15.Which type of memory is unable to have the contents modified?*ROM16.Which two devices are considered input devices? (Choose two.)*biometric authentication device*digital camera17.Which technology would be best to use for drive redundancy and data protection?*RAID18.Which two characteristics of a motherboard can be determined by the form factor? (Choose two.)*size*shape19.What is the function of a capture card?*enables a video signal to be recorded to the computer hard drive20.Which two form factors are commonly used to build a new computer? (Choose two.)*BTX*ATX21.Which type of computer resources are direct lines to the processor used by computer components to request information from the CPU?*IRQs
Refer to the exhibit. Which type of cable is shown in the graphic?*Serial23.Which two categories are used to classify CPU architecture? (Choose two.)*CISC*RISC24.What are the two connector types for the 1394a interface? (Choose two.)*4-pin*8-pin25.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?*526.
Refer to the exhibit. Based on the advertisement that is shown, what is the native resolution of this computer system?*1280 x 80027.How many conductors are found in a SATA data cable?*728.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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