Huawei
H31-311_V2.5 · Question #426
Which of the following descriptions about overhead bytes is wrong?
The correct answer is B. A1, A2: Framing bytes, which correctly select and separate individual STM-1 frames in the. See the full explanation below for the reasoning.
SDH Transmission Principles
Question
Which of the following descriptions about overhead bytes is wrong?
Options
- AE1, E2: Business contact bytes, providing business contact voice channels.
- BA1, A2: Framing bytes, which correctly select and separate individual STM-1 frames in the
- COJO: Regeneration segment trace byte, used to repeatedly send the segment access point
- DB1: Bit interleaved parity 8-bit code BIP-8, used for regeneration section layer error monitoring.
How the community answered
(47 responses)- A4% (2)
- B77% (36)
- C13% (6)
- D6% (3)
Topics
#overhead bytes#A1 A2 framing#SDH frame structure#section overhead
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