Question 76
A multiframe alignment signal is used for multiframe alignment. When some OTUk and ODUk overhead signals need to be transmitted across multiple frames, the MFAS must be used to implement multi-frame alignment.
Question 77
The setting of alarm reversal is port-based.
Question 78
What are the options for the following alarms to be transmitted from upstream to downstream? (Multiple choice)
Question 79
Before dealing with WDM faults, some preparatory work needs to be done. Which of the following items are preparatory work? (Multiple choice)
Question 80
Pointer adjustment is related to which of the following?
