单项选择题

When installing cables， which of the following is the BEST way of identifying the individual cables？（）

A.A cable chart mounted in the cabinet
B.A label at the tip of the cable
C.A label within six inches at each end of the cable
D.A penciled notation on the panel cover

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单项选择题WhencertifyingaCAT5cableinstallationtheintegratormustperformwhichofthefollowingtests？（）

A.Measure Impedance
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C.Measure Attenuation
D.Measure Resistance

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A.loud， bass intensive music （e.g. heavy metal， rock）.
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A.Black，Green，Red，Yellow
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D.Yellow，Red，Green，Black

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A.The sensor itself
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A.Z-Wave
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C.CEBus
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