Network+ Ch3

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a2k2d2
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230479
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Network+ Ch3
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2013-08-19 15:36:21
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Network Ch3
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Network+ Ch3
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  1. Which UTP wiring uses four twisted wire pairs (eight wires) and is rated for 250MHz?
    Category 6
  2. The point at which the operational control or ownership changes from your company to a service provider is referred to as ______.
    Demarcation point or demarc
  3. Which type of cable will you use to connect switches?
    Crossover
  4. Which RG rating of coax is used for cable modems?
    RG-6
  5. Which UTP uses four twisted wire pairs (eight wires), is rated for 100MHz, and is capable of handling disturbance on each pair caused by transmitting on all four pairs at the same time?
    Category 5e
  6. You want to connect a host to a switch port.  What type of Ethernet cable will you use?
    Straight-through
  7. In what instance would you use T1 crossover cable?
    To connect two CSU/DSUs
  8. 568A uses which pins to make a connection?
    1, 2, 3, and 6
  9. 568B uses which pins to make a connection?
    1 to 3 and 2 to 6
  10. What are two advantages of fiber-optic cabling?
    • - It is immune to EMI and RFI
    • - It can transmit up to 40 Km (25 miles)
  11. What does EMI stand for?
    Electromagnetic Interference
  12. What does RFI stand for?
    Radio Frequency Interference
  13. Why would a network administrator use plenum-rated cable during an installation?

    A. Low combustion temperature
    B. High combustion temperature
    C.  Reduces toxic gas released during a fire
    D.  It is not susceptible to any intererence
    • B.  High combustion temperature
    • C.  Reduces toxic gas released during a fire
  14. Which of the following Ethernet Unshielded twisted-pair cabling types are commonly used?

    A.  10BaseT
    B.  100BaseTX
    C.  1000BaseTX
    D.  All of the above
    D.  All of the above
  15. In which of the following categories is UTP not rated?

    A.  Category 8
    B.  Category 5e
    C.  Category 3
    D.  Category 2
    A.  Category 8
    (this multiple choice question has been scrambled)
  16. What type of connector does UTP cable typically use?

    A.  BNC
    B.  SC
    C.  ST
    D.  RJ-45
    D.  RJ-45
    (this multiple choice question has been scrambled)
  17. Which of the following provides the longest cable run distance?

    A.  Single-mode fiber
    B.  Multimode fiber
    C.  Category 3 UTP
    D.  Coax
    A.  Single-mode fiber
    (this multiple choice question has been scrambled)
  18. You need to crimp on a connector using an RJ-45 connector.  Which pin-out configuration would you use to connect a host to a switch?

    A.  Rolled
    B.  Crossover
    C.  Straight-through
    D.  UTP
    C.  Straight-through
    (this multiple choice question has been scrambled)
  19. Fiber-optic cable is immune to electromagnetic interference (EMI) and radio frequency interference (RFI) because it ______.

    A.  Transmits digital signals using light impulses
    B.  Transmits digital signals using electricity
    C.  Transmits analog signals using light impulses
    D.  Transmits analog signals using electricity
    A.  Transmits digital signals using light impulses
    (this multiple choice question has been scrambled)
  20. What type of cable transmits lights from end to end?

    A.  Coax
    B.  Fiber-optic
    C.  UTP
    D.  Category 2
    B.  Fiber-optic
    (this multiple choice question has been scrambled)
  21. What is the main difference between single-mode fiber (SMF) and multimode fiber (MMF)?

    A.  Electrical signals
    B.  Number of light rays
    C.  Single-mode can be run a shorter distance
    D.  Number of digital signals
    B.  Number of light rays
    (this multiple choice question has been scrambled)
  22. What type of cable should be used if you need to make a cable run longer than 100 meters?

    A.  Fiber-optic
    B.  Category 5e
    C.  Category 6
    D.  Coaxial
    A.  Fiber-optic
    (this multiple choice question has been scrambled)
  23. Which of the following are fiber-optic connectors?  Select three.

    A.  BNC
    B.  ST
    C.  RJ-11
    D.  SC
    E.  LC
    F.  RJ-45
    • B.  ST
    • D.  SC
    • E.  LC
  24. You need to connect two devices on a vertical connect and they need to send voice traffic.  Which of the following cable will you use?

    A.  Cat 8
    B.  Rolled
    C.  Cat 3
    D.  Cat 5
    D.  Cat 5
    (this multiple choice question has been scrambled)
  25. How many hosts on a half-duplex segment can talk at one time?

    A.  Unlimited
    B.  0
    C.  1
    D.  2
    C.  1
    (this multiple choice question has been scrambled)
  26. Which type of cable does EMI have the least effect on?

    A.  UTP
    B.  STP
    C.  Coax
    D.  Fiber-optic
    D.  Fiber-optic
    (this multiple choice question has been scrambled)
  27. How many devices can be connected to a full-duplex segment?

    A.  0
    B.  4
    C.  2
    D.  1
    C.  2
    (this multiple choice question has been scrambled)
  28. How many wires are used in a 100 Mbps UTP transmission?

    A.  4
    B.  2
    C.  6
    D.  8
    A.  4
    (this multiple choice question has been scrambled)
  29. A crossover cable is used to connect all of the following except _____.

    A.  Host to host
    B.  Switch to switch
    C.  Host to switch
    D.  Hub to switch
    C.  Host to switch
    (this multiple choice question has been scrambled)
  30. How is a T1 crossover cable crosses wired?

    A.  Pins 4, 5, 6, and 7 are connected to 4, 5, 1, and 2
    B.  Pins 2, 3, 4, and 5 are connected to 4, 5, 1, and 2
    C.  Pins 1, 2, 4, and 5 are connected to 3, 4, 5, and 6
    D.  Pins 1, 2, 4, and 5 are connected to 4, 5, 1, and 2
    D.  Pins 1, 2, 4, and 5 are connected to 4, 5, 1, and 2
    (this multiple choice question has been scrambled)
  31. The purpose of the demarcation point is to separate the customer from whom?

    A.  The branch office
    B.  Headquarters
    C.  The service provider
    D.  The data center
    C.  The service provider
    (this multiple choice question has been scrambled)
  32. You need to make a 568B cable for a FastEthernet link.  How many pairs will you use?

    A.  3
    B.  1
    C.  4
    D.  2
    D.  2
    (this multiple choice question has been scrambled)

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