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16 Cards in this Set
- Front
- Back
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Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
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Physical
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An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device?
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OTDR
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Which characteristics describe fiber optic cable? (Choose two.)
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It is not affected by EMI or RFI.
It is the most expensive type of LAN cabling. |
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When is a straight-through cable used in a network?
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when connecting a host to a switch
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Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B?
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crossover cable
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Which method of signal transmission uses radio waves to carry signals?
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wireless
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In most business LANs, which connector is used with twisted-pair networking cable?
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RJ-45
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Which of the following is a characteristic of single-mode fiber-optic cable?
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generally uses lasers as the light source
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Which type of cable run is most often associated with fiber-optic cable?
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backbone cable
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What are three measures of data transfer? (Choose three.)
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goodput
throughput bandwidth |
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With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs?
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the magnetic field around the adjacent pairs of wire
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What is a primary role of the Physical layer in transmitting data on the network?
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create the signals that represent the bits in each frame on to the media
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In LAN installations where potential electrical hazards or electromagnetic interference may be present, what type of media is recommended for backbone cabling?
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fiber
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What is a possible effect of improperly applying a connector to a network cable?
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Data transmitted through that cable may experience signal loss
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What is considered a benefit of wireless as a media choice?
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more host mobility
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What characteristic of UTP cable helps reduce the effects of interference?
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the twisting of the wires in the cable
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