H31-331 試験問題を無料オンラインアクセス

Which of the following is not an advantage of the M40/D40 compared to the MR2?

• A.Can achieve wavelength multiplexing and splitting
• B.Filtering noise
• C.Support smooth expansion within 40 waves
• D.Channel flatness

Which of the following are the default "fixed boundary ports" for the system? (multiple choice)

• A.FIU board IN / OUT port
• B.OAU1 board OUT port
• C.OTU unit line side port
• D.M40V board OUT port

Which of the following statements about insertion loss is wrong?

• A.Insertion loss is an important performance indicator of a single physical channel of a splitter or combiner
• B.In the insertion loss test, the insertion loss values of all channels of the splitter should be exactly equal, so you only need to test one of the channels.
• C.Each channel insertion loss is the loss of output optical power after each channel optical signal passes through the corresponding channel of the optical multiplexing device.
• D.The reason why the number of MR2 single-board cascades cannot be too large is that there is a punch-through insertion loss.

The TMX board is a type of tributary board that supports 10G rate signal access on the customer side.

• A.False
• B.True

Regarding the removal of the path operation from the network management, which of the following statements is wrong.

• A.Deleting a path from the network layer deletes only the WDM path of the network layer on the NMS side.
• B.After the path is deleted from the network layer and the network element, the service is interrupted.
• C.Delete the path from the NE layer and delete the NE side with the path of the NE layer.
• D.The business is not interrupted after the path is deleted from the network layer.