Question 61
In a typical chained NG WDM network (such as A -> B -> C, A, B, and C are three sites), it is found that the official telephone number between the stations is not available during the commissioning. What are the possible reasons? (Multiple choice)
Question 62
The basic principles of STP device fault location are? (Multiple choice)
Question 63
The main function of the transport layer in the Huawei ECC protocol stack is _____.
Question 64
What are the classification of Ethernet performance tests? (Multiple choice)
Question 65
The ROADM site using WSMD9 board can support up to 9 dimensions. If it exceeds 9 dimensions, it can be implemented by cascading WSMD9 boards.