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H31-311_V2.5 · Question #474
H31-311_V2.5 Question #474: Real Exam Question with Answer & Explanation
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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
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