窗体顶端
张亭: 轩秋明: 马桂丹:
What is considered a benefit of wireless as a media choice?本题考查的是无线介质的好处P189
more host mobility
lower security risks
reduced susceptibility to interference
less impact of the surroundings on the effective coverage area
窗体底端
2
窗体顶端
Refer to the exhibit. Which type of Category 5 cable is used to make an connection between Host A and Host B?本题考查的是UTP线缆类型及应用P186
coax cable
rollover cable
crossover cable
straight-through cable
窗体底端
3
窗体顶端
What is a primary role of the Physical layer in transmitting data on work?
物理层的功能 P177
create the signals that represent the bits in each frame on to the media
provide physical addressing to the devices
determine the path packets take through work
control data access to the media
窗体底端
4
窗体顶端
In LAN installations where potential electrical hazards or ic interference may be present(前指UTP的危害), what type of media is mended for backbone cabling?本题考查的是光纤P187、188
coax
fiber
Cat5e UTP
Cat6 UTP
STP
窗体底端
5
窗体顶端
What is a possible effect of improperly applying a connector to work cable?
本题考查的是连接器P190
Data will be forwarded to the wrong node.
Data transmitted through that cable may experience signal loss.
An improper signaling method will be implemented for data transmitted on that cable.
The encoding method for data sent on that cable will change pensate for the improper connection
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