Question 71
K1 and K2 bytes can send APS switching signaling or indicate that the multiplexed segment signal is invalid.
Question 72
The correct statement about the multiplex section remote error indication MS-REI is (): 1. B2 byte is the transmission channel; 2. M1 byte is the transmission channel; 3. sent back from the destination to the source 4. sent from the source to the destination; 5. indicates the number of errors detected after the destination receives the multiplex section signal.
Question 73
How many frames is the minimum interval between two adjacent pointer adjustment events?
Question 74
Which of the following alarm/event dump modes does U2000 support? (Multiple choice)
Question 75
In the network management system, the network element performance monitoring time is set to () minutes and () hours.