Chapter 1 Exam - IT Essentials (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

17. Which two characteristics of a motherboard can be determined by the form factor? (Choose two.)
>size
>shape

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.

22. 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

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
>6-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.)
>40
>80

28. Which three devices are considered output devices? (Choose three.)
>headphones
>monitor
>printer


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