A.Intermediate network element service cross-connection is not configured

B.The service between two network elements in the same network management, under the premise that the correct time slot is selected, the cross-connection of one network element is delivered through the U2000, and the other is delivered through the command line software and the network management is not uploaded

C.A complete path is configured between the online NE and the pre-configured NE

D.In 5.0 platform equipment, a certain network element in a complete path is not in the current network management

A.TRUE

B.FALSE

A.The original priority table of the system clock is not configured, and the network element uses its own default priority table

B.PTP clock configuration error

C.Some nodes in the network have activated the SSM protocol, and some of the SSM protocols have not been activated

D.In the clock source priority table, all other clock sources except the internal source are missing or the frequency deviation is too large

A.Distribution

B.Activate

C.Submit

D.Load

A.For 10G and 2.5G systems, adjust the received optical power of the wavelength conversion board to "high 3 low 5", which is 3dB higher than the receiving sensitivity and 5dB lower than the overload point.

B.Adjust the OAU gain of the optical amplifier board to make the output optical power reach the standard.

C.The actual gain upper threshold of an OAU is smaller than the nominal gain upper threshold, indicating that the performance of the OAU board is degraded and it is recommended to replace it.

D.Adjust the VOA (adjustable optical attenuation) in front of the optical amplifier board so that the input optical power of the board = the input single-wave nominal optical power + 10lgN, where N is the actual wave number. If it is not adjusted to the nominal value, adjust the VOA attenuation to the minimum.