题目
A. Switch times would exceed 50 ms for an OC-3 BLSR ring.
B. An equal amount of working and protect bandwidth is required.
C. DCC bandwidth is not large enough to handle K1/K2 processing.
D. There is not enough bandwidth in an OC-3 ring to justify BLSR protection.
第1题
ITU标准OC-3的数据传输速率为______。
A.51.84 Mbps
B.155.520 Mbps
C.622.080 Mbps
D.1.244 Gbps
第2题
按照ITU标准,传输速率为622.080Mbit/s的标准是()。
A) OC-3
B) OC-12
C) OC-48
D) OC-192
第7题
A.0
B.1
C.2
D.3
第8题
A.DS-1; E1
B. DS-1; STM-1
C. OC-3; STM-1
D. STS-1; STM-1
E. OC-192; STM-192
第9题
TTC标准OC-3的传输速率为()
A.512.4Mbps
B.155.52Mbps
C.622.08Mbps
D.1.244Gbps
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