The receive end performs BIP-8 check for the unscrambled STM-16 frame. If the BIP-8 check result XOR the value of the B1 byte contained in the following STM-16 frame is 10001100, it indicates that () bit error blocks exist in the STM- 16 frame.
Answer(s): B
The EPL service exclusively uses bandwidth on the line, which is highly secure. It is applicable to the private line application of VIP customers.
Answer(s): A
Which of the following statements about clock sources is incorrect?
Answer(s): D
Which of the following operations may interrupt NE services? (Multiple Choice)
Answer(s): C,D
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