Question 26
In the electrical layer overhead processing-sink function, the signal flow is from the OCh to the client direction, the PM ODUkP is detected first, and then the TCM ODUkT is detected.
Question 27
The working mode provided by the line fiber quality monitoring function does not include _____.
Question 28
When configuring 1+1 optical line protection, you can select RI1/TI2/TO2 as the working channel according to the actual situation.
Question 29
Which of the following statements about ROADM are correct?
Question 30
VPLS (Virtual Private LAN Service) is a Layer 2 VP technology that simulates a local area network.