A.Increasing the pulse width increases the duration of the laser emission, which increases the energy injected, allowing for a larger dynamic range, but an increase in pulse width results in a larger dead zone.

B.Line fiber quality monitoring function increases the monitoring accuracy by adding the averaged results to the average. The actual time required from the start detection to the software returning the test result will be greater than the "detection time" is set.

C.The total loss of the fiber will affect the actual detection distance. The dynamic range of the same detection mode is fixed. The larger the total loss of the fiber, the smaller the distance that can be detected.

D.Different modes of light pulse width are different in detection, pulse width affects distance accuracy and monitoring distance. The larger the pulse width, the larger the dynamic range, the longer the test distance and the higher the range measurement accuracy.

A.VPWS

B.EPL

C.EPLAN

D.VPLS

A.Configure QoS

B.Configure MPLS tunnel

C.Configure the UNI port

D.Configure port DCN

A.n(Nn/OUTn)-OCH:l-ODUk:m-ODUp:q

B.ODUkLP-n

C.ClientLP-n

D.RX/TX-n

A.According to the clock source priority table, the network element first selects the clock with the highest quality level from the available clock sources as the synchronization source.

B.The network element broadcasts the clock quality information and the clock source ID of the synchronization source to the downlink site through the S1 byte, and reverse notices the uplink site that the clock quality from the local network element is "not available for synchronization" by the S1 byte in the direction of the synchronization source.

C.The network element broadcasts the clock quality information of the synchronization source to the downlink site through the s1 byte. And reverse notice the uplink site by the S1 byte in the direction of the synchronization source that the clock quality from the local network element is "not available for synchronization".

D.If there are multiple clock sources with the highest quality level, the network element selects the clock with the highest clock priority as the synchronization source.