Quiz2-Studying Sheet for IT learners quiz PDF

Preview

Summary

Studying Sheet for IT learners quiz description document very understandable MyLab IT course it is useful for learners especially beginners...

Description

1. 2.

The rule of thumb that predicts that CPU capacity will double every 2 years is called Moore's Law? Which of the following is the lightest computer? Smartphones

3. 4.

The processor market for desktop and laptop computers is dominated by: Intel Which of the following does not determine the CPUs processing power? speed of the motherboard

5. 6.

Which of the following activities is carried out by the ALU? performs the arithmetic calculations All of the following are part of the machine cycle EXCEPT encode

7. 8. 9. 10. 11.

The CPU consists of which two parts? the control unit and the arithmetic logic unit The control unit is one component of the ____ CPU Running the CPU at a faster speed than the manufacturer recommends is called overclocking Cache memory levels are based on proximity to the processor provides high-speed information processing by enabling a new set of instructions to start before the previous set is finished? Hyperthreading Some of the cache memory of a CPU is inside the CPU, itself RAM is an example of ------ storage? Volatile The amount of Ram storage is measured in gigabytes Windows uses a memory-management technique known as ______ to monitor which applications you use most frequently and then preloads them into your system memory SuperFetch Select the best ways to determine your RAM allocation. List all programs you would run simultaneously and the amount of RAM each need and add together. When referring to hard drives, access time is measured in milliseconds A ____ uses electronic memory and has no motors or moving parts solid-state drive How do optical discs store data? a laser burns tiny pits onto a disc Which of the following is NOT a storage option? random access memory

12. 13. 14. 15. 16. 17. 18. 19. 20.

21. Which of the following storage devices has the largest potential capacity? mechanical hard drive 22. Which of the following ports is NOT considered to exclusively a video port? USB 23. 24. 25. 26. 27. 28. 29.

To speed up the display of graphics, an GPU is integrated into most video cards. A ___ enables the computer to drive the speaker system. sound card How many channels are in a Dolby 7.1 surround sound system? 8 Running the Disk Defragmenter utility will make the hard drive work more efficiently Running the Disk Cleanup Utility is a quick way to clear out unnecessary files The Windows Refresh utility returns your computer to the state it was in when it came from the factor Which statement pertaining to system reliability is false an accumulation of temporary internet files has no effect on your computer's overall performance 30. To securely erase data, the U.S. Department of Defense suggests that the data be overwritten seven times. 31. Moore's Law predicts that the number of transistors CPU will double about every two years. 32. The CPU is located on the motherboard. 33. A CPU's processing power is determined by the combination of the clock speed, the number of cores, and the amount of cache memory 34. The Clock speed of a CPU dictates how many instructions the CPU can process each second. 35. The CPU is composed of the control unit and the arithmetic logic unit. 36. The process the CPU performs for each program instruction is called the machine cycle 37. Hyperthreading is a feature of a CPU that allows it to begin to fetch the next instruction before it has finished executing the current one. 38. Running the CPU faster than the manufacturer recommends is called overclocking 39. DDR3 is the type of RAM memory used most often in today's computers. 40. The CPU's cache memory is a form of RAM that gets data to the CPU for processing much faster than bringing the data in from the computer's RAM. 41. RAM is an example of volatile storage because when the power is turned off, RAM is cleared out. 42. The time it takes a storage device to locate stored data and make it available for processing is called access time. 43. The hard drive has the largest potential capacity of any storage device. 44. Solid state drives are 100 times faster than mechanical hard drives. 45. Solid state drives run with no noise and very little heat, and require very little power. 46. Optical drives use a(n) laser to read and write data. 47. A(n) read/write head moves over the spinning platters to retrieve data from the hard disk. 48. A stoppage of the hard drive that often results in data loss is called a(n) head crash

49. 50. 51. 52. 53.

RAID 0 improves disk writing performance because data is written across two drives. RAID 1 automatically duplicates your data and saves it on two identical drives. A video card can deliver output to multiple monitors In a video card, GPU stands for Graphics Processing Unit Surround sound is a type of audio system where the listener hears the sound as if it were coming from multiple speakers. 54. The audio subsystem consists of the speakers, microphone and a(n) sound card. 55. Mac OS X uses Time Machine software to automatically backup and restore data. 56. Many computer manufacturers offer recycling programs to reduce the number of computers disposed in landfills. 57. Windows has tools to monitor CPU utilization in Task Manager. True 58. Solid state hybrid drives are a combination of a mechanical hard drive and an SSD drive. True 59. Desktop computer systems are less reliable than laptop computers. False 60. Level 3 cache memory is faster than Level 1 and Level 2 cache. False 61. The use of multiple cores on one CPU chip allows the execution of two or more sets of instructions at the same time. True 62. Cache memory is a form of ROM. False 63. Level 1 cache usually contains the least amount of storage of the cache memory levels. True 64. Accessing data from the hard drive to send to the CPU is faster than accessing data from RAM. False 65. The heads of a mechanical hard disk drive touch the surface of the platter to read or write the data. False 66. RAM prices tend to be very stable. False 67. Optical discs store data using tiny pits and grooves burned by a laser. True 68. Video cards are designed with their own RAM storage. True 69. When using multiple monitors, you must have multiple video cards. False 70. 3D sound is different from surround-sound. True 71. Dolby Digital 7.1 requires a total of eight speakers. True 72. RAID 0 automatically duplicates your data and saves it on two identical drives. False 73. If you reformat the hard drive on a computer, it erases all personal information from your computer and makes it safe to donate. False 74. Latency: Time needed for correct sector to spin to the read/write head Platters: Round, thin plates of metal within a hard drive Tracks: Concentric circles on a hard drive Seek time: Time required for the read/write head to move to the correct track Sectors: Pie-shaped wedges on the surface of a hard drive 75. - ROM: Permanent storage - Clock speed: measure of CPU speed. - RAM: Volatile storage - Quad-core processor: A CPU with 4 cores - Hyperthreading: Simultaneous execution of more than one instruction 76. - Random access memory: Volatile storage space - Cache memory: can be accessed more quickly than regular RAM - Video memory: found on a video card - Virtual memory: Space on the hard drive for data that doesn't fit in RAM - Physical memory: The amount of RAM contained on memory modules 77. – CPU Processor - SSD Uses electronic memory and has no moving parts - ALU Performs arithmetic calculations - RAID Strategy for using more than one drive in a system -cache closest memory to the CPU...