Huawei
H31-311_V2.5 · Question #474
Which of the following statements are correct regarding the use of J0 bytes? (Multiple choice)
The correct answer is A. This byte is used to repeatedly send the segment access point identifier B. There is only one J0 byte in the STM-N frame D. The J0 byte indicates the position of each STM-1 in the STM-N. See the full explanation below for the reasoning.
SDH Transmission Principles
Question
Which of the following statements are correct regarding the use of J0 bytes? (Multiple choice)
Options
- AThis byte is used to repeatedly send the segment access point identifier
- BThere is only one J0 byte in the STM-N frame
- CIf the J0 byte is mismatched, all "1"s are inserted into the lower level signal
- DThe J0 byte indicates the position of each STM-1 in the STM-N
How the community answered
(35 responses)- A77% (27)
- C23% (8)
Topics
#J0 byte#section overhead#STM-N frame#access point identifier
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