cheat sheet

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Author:
kyleriggs
ID:
248259
Filename:
cheat sheet
Updated:
2013-11-22 08:59:36
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cheat full
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Description:
801 comptia a+
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  1. The 6 step troubleshooting process.
    • 1. Identify Problem
    • 2. Establish theory of probable cause.
    • 3. Test theory to detirmine cause.
    • 4. Establish plan of action to resolve problem.
    • 5. Verify system funtionality. Implement preventative measures.
    • 6. Document findings, actions, outcomes.
  2. ATX size
    12" x 9.6"
  3. microATX size
    9.6" x 9.6"
  4. ITX size
    60mm - 6.7" x 60mm - 6.7"
  5. BTX size
    12.8" x 10.5"
  6. ATX identifying characteristic
    Ram & expansion slots perpendicular
  7. microATX identifying characteristic
    Smaller than ATX; backward compatible
  8. ITX identifying characteristic
    Designed for HTPCs, UMPCs, and smartphones
  9. BTX identifying characteristic
    Ram & expansion slots are parallel
  10. DDR Transfer rates
    PC-1600 - PC-3200
  11. DDR2 Transfer Rates
    PC2-3200 - PC2-8500
  12. DDR3 Transfer rates
    PC3-6400 - PC3-17000
  13. EP printing process
    • 1.Cleaning - rubber blade, erasing lamp clean drum
    • 2.Conditioning - primary corona wire puts neg. charge on drum
    • 3.Writing(exposing) - laser writes positive image to drum
    • 4.Developing - negative charge toner applied to positive areas of drum
    • 5.Transferring - transfer corona positively charges paper, negative charged toner transferred to paper
    • 6.Fusing - fusing assembly heats & bonds toner to paper
  14. SATA 1.0 Speed
    1.5 Gb/s
  15. SATA 2.0 Speed
    3 Gb/s
  16. SATA 3.0 Speed
    6 Gb/s
  17. PCI tranfer rate
    133 MB/s or 266 MB/s (32-bits wide.)
  18. AGP transfer rate
    266 MB/s - 2 GB/s
  19. PCIe transfer rate
    250 MB/s - 1 GB/s per lane (Ver. 1-3)
  20. PCI-X transfer rate
    133 MB/s or 266 MB/s (64-bits wide.)
  21. Voltages supplied to motherboard
    +3.3V, +5V, +12V, -12V, -5V, Ground
  22. Name 4 Intel sockets
    LGA775, LGA1156, LGA1155, LGA1366
  23. Name 7 AMD sockets
    940, AM2, AM2+, AM3, AM3+, FM1, F (replaced by C32 & G34)
  24. LGA775
    Core 2 Duo, Core 2 Quad, Xeon, Pentium, Celeron
  25. LGA1156
    Core i7, i5, i3, Xeon, Pentium, Celeron
  26. LGA1155
    Core i7, i5, i3, Xeon, Pentium, Celeron
  27. LGA1366
    Core i7, Xeon
  28. 940
    Opteron, Athlon 64 FX
  29. AM2
    Athlon 64 x2, Athlon 64
  30. AM2+
    Phenom II, Phenom, Athlon x2, Athlon 64
  31. AM3
    Phenom II, Sempron, Athlon II
  32. AM3+
    FX
  33. FM1
    A-series APUs (llano)
  34. F (replaced by C32 & G34)
    Opteron
  35. Formula to calculate DDR data transfer rate
    • Clockspeed x bytes x 2 = Data Transfer Rate
    • ex: 100MHz x 8 x 2 = 1,600 MB/s
  36. Ultra3 SCSI
    160 MB/s
  37. Ultra-320 SCSI
    320 MB/s
  38. Ultra-640 SCSI
    640 MB/s
  39. SAS (serial attached SCSI)
    300 MB/s
  40. Class 1 Bluetooth: mW and Range
    • 100 mW
    • 100 meters
  41. Class 2 Bluetooth: mW and Range
    • 2.5 mW
    • 10 meters
  42. Class 3 Bluetooth: mW and Range
    • 1 mW
    • 1 meter
  43. 802.11a
    54 Mbps, 115/390 ft., 5 GHz
  44. 802.11b
    11 Mbps, 115/460ft, 2.4 GHz
  45. 802.11g
    54 Mbps, 125/460 ft., 2.4 GHz
  46. 802.11n
    600 Mbps, 230/820 ft., 2.4 and/or 5 GHz
  47. PC Card speed
    20MB/s
  48. cardBus speed
    133 MB/s
  49. ExpressCard (PCI express mode) speed
    2.5 Gbps (250 MB/s)
  50. ExpressCard (USB mode) speed
    480 Mbps (60 MB/s)
  51. Type I thickness & Use
    • 3.3 mm
    • Ram, Flash memory
  52. Type II thickness & use
    • 5 mm
    • Network adapters, modems
  53. Type III thickness & use
    • 10.5 mm
    • Hard Drives
  54. Molex
    • Red, black, black, yellow
    • (case fans, IDE hard drives, optical drives)
  55. Mini
    • Red, black, black, yellow
    • (floppy drives)
  56. SATA
    • 15-pin; 3.3V, 5V, 12V
    • (SATA hard drives & optical discs)
  57. PCIe power connector
    • 6-pin (ATX ver 2.1) 12V
    • 8-pin (ATX ver 2.2 & up) 12V
  58. DVD-5
    Capacity:
    Sides:
    Total Layers:
    • DVD-5
    • Capacity: 4.7 GB
    • Sides: 1
    • Total Layers: 1
  59. DVD-18
    Capacity:
    Sides:
    Total Layers:
    • DVD-18
    • Capacity: 17 GB
    • Sides: 2
    • Total Layers: 4
  60. XGA
    • eXtended Graphics Array
    • 1024 x 768
    • 4:3
  61. WXGA
    • Widescreen eXtended Graphics Array
    • 1280 x 800
    • 16:10
  62. SXGA+
    • Super eXtended Graphics Array plus
    • 1400 x 1050
    • 4:3
  63. UXGA
    • Ultra eXtended Graphics Array
    • 1600 x 1200
    • 4:3
  64. WSXGA+
    • Widescreen Super eXtended Graphics Array plus
    • 1680 x 1050
    • 16:10
  65. WUXGA
    • Widescreen Ultra eXtended Graphics Array
    • 1920 x 1200
    • 8:5
  66. USB 1.0
    • Low-Speed
    • 1.5 Mbps
  67. USB 1.1
    • Full-Speed
    • 12 Mbps
  68. USB 2.0
    • High-Speed
    • 480 Mbps
  69. USB 3.0
    • Super-speed
    • 5.0 Gbps
  70. 1394a/FireWire 400
    • 400 Mbps
    • 4 & 6-pin
    • 4.5 meters
  71. 1394b/FireWire 800
    • 800 Mbps
    • 9-pin
    • 10 Meters
  72. CAT3 Speed
    10 Mbps
  73. CAT5 Speed
    100 Mbps
  74. CAT5e
    100 Mbps & Gigabit
  75. CAT6
    100 Mbps & Gigabit
  76. Class A
    Range:
    1-126
  77. Class B
    Range:
    128-191
  78. Class C
    Range:
    192-223
  79. Class A
    Private Range:
    10.0.0.0 - 10.255.255.255
  80. Class B
    Private Range:
    172.16.0.0 - 172.31.255.255
  81. Class C
    Private Range:
    192.168.0.0 - 192.168.255.255
  82. Class A
    Default subnet mask
    255.0.0.0
  83. Class B
    Default subnet mask
    255.255.0.0
  84. Class C
    Default subnet mask
    255.255.255.0
  85. Port 21
    FTP
  86. Port 22
    SSH
  87. Port 23
    Telnet
  88. Port 25
    SMTP
  89. Port 53
    DNS
  90. Port 80
    HTTP
  91. Port 110
    POP3
  92. Port 143
    IMAP
  93. Port 443
    HTTPS
  94. Port 3389
    RDP
  95. Orange
    +3.3V
  96. Red
    +5V
  97. Yellow
    +12V
  98. Blue
    -12V
  99. White
    -5V

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