Jawaban IT Essentials Chapter 1 exam( Version 4.1 )

1 Which type of memory is primarily used as cache memory?
 *SRAM



2 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



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



4 Refer to the exhibit. Based on the advertisement that is shown, what is the native resolution of this computer system?
 *1280 x 800



5 Which type of computer resources are direct lines to the processor used by computer components to request information from the CPU?
 *IRQs



6 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



7 Which type of RAM chip has the fastest clock rate but consumes the least power and generates the least heat?
 *DDR3 SDRAM



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



9 A technician is helping a customer compare two hard drives. Which unit of measurement is used for the hard drive speed?
 *revolutions per minute



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


11 Which type of memory is unable to have the contents modified?
 *ROM


12 Which important feature is offered by the USB standard?
 *It can supply power from the computer to devices.


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


14 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


15 Which two devices are considered input devices? (Choose two.)
 *biometric authentication device
 *digital camera


16 Which technology would be best to use for drive redundancy and data protection?
 *RAID


18 Which two categories are used to classify CPU architecture? (Choose two.)
 *CISC
 *RISC


19 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


20 What is the function of a capture card?
 *enables a video signal to be recorded to the computer hard drive


21 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.


22A 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


23 How many conductors are found in a SATA data cable?
 *7


24 What are the two connector types for the 1394a interface? (Choose two.)
 *4-pin
 *8-pin


25 Which two form factors are commonly used to build a new computer? (Choose two.)
 *BTX
 *ATX


26 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


27 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.)
 *80
 *120


28 Which three devices are considered output devices? (Choose three.)
 *fingerprint scanner
 *headphones
 *printer.



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