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Which of the following are not small form
factor fiber connectors?
A. MT-RJ
B. LC
C. FC
D. SC
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C. FC
D. SC
FC and SC are larger and do not permit port density.
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Which of the following Fire Wire connectors are for devices that need to be powered from the computer?
A. 4 pin
B. 6 pin
C. 8 pin
D. 10 pin
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B. 6 pin has two extra pins to supply power from the computer
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If you need to change the type of media a NIC is able to connect to, which device would you use?
A. Bridge
B. Hub
C. Transceiver
D. All of the above
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C. Transceiver The external transceiver's sole purpose in life is to change the connector type of the NIC. The other devices will also meet that need, but are used for more specific purposes.
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Which of the two following cable, connector, length triples meet the specifications for 1000BASE-SX and 1000BASE-LX?
A. UTP, RJ-45, 100m
B. MMF, LC, 550m
C. SMF, FC, 200m
D. MMF, SC, 550m
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B and D. Both the SX and LX specifications are fiber, not UTP. LX does permit the use of single mode fiber, but does not use the FC connector.
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Which network component is used in conjunction with a router to provide access to to a T1 circuit?
A. Gateway
B. T1 Modem
C. CSU/DSU
D. Switch
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C. Channel Service Unit/Data Service Unit. Translates LAN signals into signals that are used on T1 lines. Some people call them T1 Modems, it is not a modem because it does not translate data into analog and back.
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Which of the following is the difference between 100BASE-T and 1000BASE-T ethernet specifications?
A. 1000BASE-T is 10 times faster because it uses fiber optics
B. 100BASE-T requires minimum of category 5 UTP, while 1000BASE-T must run over no less than Category 5e UTP
C. Because it's slower and more stable, 100BASE-T can run over longer distances
D. Both require the same number of pairs for transmitting and receiving, 1000BASE-T uses them differently.
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B. 100BASE-T works fine over 2 pairs, 1000BASE-T uses all four pairs simultaneously (a reason D is incorrect). A minimum of Cateogry 5e UTP is required for proper functioning.
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