A+ Certification Chp. 1

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  1. What is information technology?
    It is the design, development, implementation, support, and management of computer hardware and software applications.
  2. Who developed the A+ Certification program?
    Computing Technology Industry Association (CompTIA)
  3. What does the A+ Essentials exam measure?
    The A+ Essentials exam measures the necessary competencies of an entry level IT professional with at least 500 hours of hands on experience in the lab or field. This includes the fundamentals of computer technology, networking, and security, as well as communications skills.
  4. What are the five modules of the EUCIP IT Administrator Certificate?
    • 1. PC Hardware; the basic maeup of a personal computer and the functions of its components; dignose and repair
    • 2. Operating systems; installing/updating system and apps
    • 3. LAN and network services
    • 4. Expert network use
    • 5. IT security
  5. What makes up a computer system?
    hardward and software
  6. What is hardware?
    physical equipment
  7. What are examples of hardware?
    keyboard, monitor, cables, speakers, mouse
  8. What is software?
    operating system and programs
  9. What does A+ Certification signify?
    It signifies that a candidate is a qualified PC hardware and software technician.
  10. What does the operating system do?
    It instructios the computer how to operate (identifying, accessing, proccessing)
  11. What does the computer case do?
    It protects the internal components
  12. What determines the size and shape of the computer case?
    The motherboard and other internal components.
  13. How large should the computer case be?
    Depends; in general, it should be durable, easy to service, and have enough room for expansion.
  14. How large should the power supply be?
    large enought to supply power to its current components; future upgrades to current components may also require a larger power supply
  15. What does a computer case contain?
    The internal components of a computer
  16. What are computer cases made of?
    plastic, steel, aluminum
  17. What are the size and layout of a case called?
    form factor
  18. What are the basic form factors for computer cases?
    desktop and tower
  19. What must be considered when choosing a case?
    • -size of the motherboard
    • -nuber of internal/externals drives (bays)
    • -available space
  20. How are internal components grounded?
    attachment to the case
  21. What does a power supply do?
    converts AC power to DC, which is a lower voltage
  22. What can protect a computer from problems caused by a change in power?
    UPS (uninterttuptible power supply)
  23. What does a power invertor do?
    provides AC power from battery by converting DC current of UPS battery
  24. What is a keyed connector?
    It is designed to be inserted in only one direction.
  25. What is a molex connector used to connect?
    Optical drive or hard drive
  26. What does a berg connector connect?
    floppy drive
  27. What kind of connection is used to connect the motherboard?
    • 20-pin or 24-pin slotted connector
    • 20=2x10
    • 24=2x12
  28. What is the voltage of the yellow wire?
  29. What is the voltage of the blue wire?
  30. What is the voltage of the orange wire?
  31. What is the voltage of the red wire?
  32. What is the voltage of the white wire?
  33. What color is the ground wire?
  34. What are the four basic units of electricity?
    • V - voltage
    • I - current
    • P - power
    • R - resistance
  35. What is voltage?
    measure of force required to push electrons through a circuit
  36. What is current?
    amount of electrons going through a circuit
  37. How is current measured?
    amperes, amps (A)
  38. What is power?
  39. What is the measurement of power?
    watts (W)
  40. What is resistance?
    opposistion to flow of current
  41. How is resistance measured?
  42. Lower resistance allows _______ current
  43. What is Ohm's Law?
  44. What will result in higher power?
    increasing the current or the voltage
  45. What is the motherboard?
    the main printed circuit board that contains buses (electrical pathways)
  46. What is a bus?
    electrical pathways
  47. What are other names for the motherboard?
    system board, backplane, main board
  48. What items are on the motherboard?
    CPU, RAM, expansion slots, heat sink/fan, BIOS chip, chipset, wires
  49. What does form factor refer to?
    the size and shape of the board
  50. What does the form factor determine?
    how individual components connect to the motherboard and the same size and shape of the computer case
  51. What is the most common form factor in desktop computers?
    AT, based on the IBM AT motherboard
  52. What is the newer motherboard form factor?
    ATX - improvedAT design
  53. What is the chipset?
    various integrated circuits attached to motherboard that control how system hoardware intereacts with CPU and motherboard
  54. What deptermines the type of CPU that can be installed?
    the slot/socket in which the CPU is installed
  55. What are the two components that make up the chipset?
    Northbridge and southbridge
  56. Which component controls access to the RAM, video card, and the speeds at which the CPU can communicate with them?
  57. Which component allows the CPU to communicate with the hard drives, sound card, USP ports and other I/O ports?
  58. What is the brain of the computer?
  59. Whare are the most common CPU manufacturers?
    Intel, AMD
  60. What is the connector that interfaces between the motherboard and the processor?
    CPU socket/slot
  61. What is PGA?
    pin grid array
  62. What is ZIF?
    zero insertion force
  63. What does ZIF refer to?
    the mount of force needed to install a CPU
  64. What is PGA architecture?
    the area in which the underside of the processor are inserted
  65. What is a program?
    sequence of stored instructions
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A+ Certification Chp. 1
2011-09-23 08:13:40
Cisco Certification Chapter one

Chapter one of CompTIA's A+ Certification source
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