A.DCP

B.QCP

C.OTU

D.OLP

A.Road version failure, together with AU, TU pointer adjustment

B.The clock source or clock source level is incorrectly configured, resulting in two clock sources or two NEs in the same network following each other, causing the AU and TU pointers to be adjusted

C.The power supply of the subrack is faulty, which causes the clock board to work abnormally, and the AU and TU pointers are adjusted together.

D.The fault of the cross-board board causes the clock quality of its distribution to be poor, causing the adjustment of the AU and TU pointers

A.During the commissioning process, it is necessary to pay attention to the range of the spectrum analyzer and the OUT board to avoid damage to the board and the spectrum analyzer due to excessive input optical power.

B.In the case of ensuring that the optical power flatness meets the index requirements, the optical power flatness can be sacrificed to ensure the signal-to-noise ratio flatness

C.The single-wave optical power at the receiving end can be calculated accurately according to the total power

D.Too high optical power will cause nonlinear effects. The lower the optical power into the fiber, the smaller the nonlinear effects.

A.False

B.True

A.MPLS Pin A.

B.CC

C.LT

D.MPLS Tracert