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16 Cards in this Set

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  • Back
Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
Physical
An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device?
OTDR
Which characteristics describe fiber optic cable? (Choose two.)
It is not affected by EMI or RFI.

It is the most expensive type of LAN cabling.
When is a straight-through cable used in a network?
when connecting a host to a switch
Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B?
crossover cable
Which method of signal transmission uses radio waves to carry signals?
wireless
In most business LANs, which connector is used with twisted-pair networking cable?
RJ-45
Which of the following is a characteristic of single-mode fiber-optic cable?
generally uses lasers as the light source
Which type of cable run is most often associated with fiber-optic cable?
backbone cable
What are three measures of data transfer? (Choose three.)
goodput

throughput

bandwidth
With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs?
the magnetic field around the adjacent pairs of wire
What is a primary role of the Physical layer in transmitting data on the network?
create the signals that represent the bits in each frame on to the media
In LAN installations where potential electrical hazards or electromagnetic interference may be present, what type of media is recommended for backbone cabling?
fiber
What is a possible effect of improperly applying a connector to a network cable?
Data transmitted through that cable may experience signal loss
What is considered a benefit of wireless as a media choice?
more host mobility
What characteristic of UTP cable helps reduce the effects of interference?
the twisting of the wires in the cable