LAN Switching and Wireless

71. _________ uses four twisted pairs.

1. 1000Base-SX
2. 1000Base-LX
3. 1000Base-T
4. none of the above

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72. _________ uses four twisted-pair cables that connect each station to a common hub.

1. 10Base5
2. 10Base2
3. 10Base-T
4. 10Base-F

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73. _________ uses long-wave 1310-nm single mode fiber.

1. 10GBase-S
2. 10GBase-L
3. 10GBase-E
4. none of the above

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74. _________ uses short-wave 850-nm multimode fiber.

1. 10GBase-S
2. 10GBase-L
3. 10GBase-E
4. none of the above

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75. _________ uses thick coaxial cable.

1. 10Base5
2. 10Base2
3. 10Base-T
4. 10Base-F

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76. _________ uses thin coaxial cable.

1. 10Base5
2. 10Base2
3. 10Base-T
4. 10Base-F

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77. _________ uses two carriers, one in-phase and the other quadrature.

1. ASK
2. PSK
3. FSK
4. QAM

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78. _________ uses two fiber-optic cables.

1. 100Base-TX
2. 100Base-FX
3. 100Base-T4
4. none of the above

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79. _________ uses two optical fibers and a long-wave laser source.

1. 1000Base-SX
2. 1000Base-LX
3. 1000Base-T
4. none of the above

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80. _________ uses two optical fibers and a short-wave laser source,

1. 1000Base-SX
2. 1000Base-LX
3. 1000Base-T
4. none of the above

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