Scrambling of SONET signals is done to （）. -题库考试答案搜索网

Scrambling of SONET signals is done to （）.

单选题

2022-01-03 03:12

A、prevent the leakage of external fiber emissions
B、provide the optical network with the highest level of security possible
C、assure an even distribution of 1's and 0's for extended transmitter life
D、assure an adequate number of transitions for clock recovery at the receiver
E、prevent the receiver from assuming AIS inadvertently when all 0's are received

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正确答案

D

试题解析

标签： CCNP(642-311)

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