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【简答题】
What is the length of a contention slot in CSMA/CD for (a) a 2-km twin-lead cable (signal propagation speed is 82% of the signal propagation speed in vacuum)? (b) a 40-km multimode fiber optic cable (signal propagation speed is 65% of the signal propagation speed in vacuum)?
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举一反三
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has saved
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B.
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so as to avoid indicating to the people what time it is when he starts work
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Authority
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Power
C.
Influence
D.
All of the above]
E.
A and B only
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