Ethernet Basics and Cable Types

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Author:
wbsmith84
ID:
229916
Filename:
Ethernet Basics and Cable Types
Updated:
2013-08-13 17:34:37
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Ethernet Basics Cable Types
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Ethernet Basics and Cable Types
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  1. What does CSMA/CD stand for?
    Carrier Sense Multiple Access with Collision Detection
  2. 10Base-T is specified by what Standard? What does the T stand for? Whats the maximum length? What does the 10 stand for?
    IEEE 802.3, Twisted Pair, 100 meters, 10 Megabits Per Second capacity.
  3. Ethernet is considered to by what type of topology?
    Logical bus
  4. Fast Ethernet is defined as? Whats the maximum capacity? Length?
    IEEE 802.3u, 100 MBPS, 100 meters
  5. GigaBit Ethernet is define as? How long? Speed?
    IEEE 802.3z and 802.3ab, 100 meters, 1GBPS
  6. What is the standard cabling type?
    CAT 5 UTP
  7. The endpoints of the wires are refered to as?
    PINS
  8. Pins 1 & 2 do do what?
    Transmit
  9. Pins 3 & 6 do what?
    Receive
  10. What is the benefit of twisting the cables?
    Reduces that amount of electromagnetic interference.
  11. What is Crosstalk?
    Electromagnetic interference that "crosses over" from one pair of cables to another making the signal unusable.
  12. What does NEXT stand for? What is NEXT?
    • NEXT is (near end crosstalk). This is cause by
    • crossed or crushed pairs of wires.
  13. What does FEXT stand for?
    Far End Crosstalk
  14. This cable connects different devices. The wire connect to Pin 1 on one side is connected to Pin 1 on the other side. The wire connected to Pin 2 on one side is connected to Pin 2 on the other and so fourth.
    Straight through cable
  15. You need to connect two similar devices directly with Ethernet. Example 2 switches need to be connected together.  
    Local Cable End - Pin 1  Pin 2  Pin 3  Pin 6  
    Remote Cble End-Pin 3  Pin 6  Pin 4  Pin 2

    These wires will cross over
    Cross over cable
  16. You use this cable to connect a laptop directly to the switch or router. All eight wires in the cable will "roll over" to another pin at the remote end. Pin 1 at one end rolling over the Pin 8 at the other end. Pin 2 one end rolling over to Pin 7 at the other end, and so fourth. It also has a DB-9 connector
    Rollover cable
  17. Routers typically use this cable for connection to a Frame Relay network.
    Serial Cables

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