Free Huawei H31-341 Exam Dumps Questions & Answers

The transmission windows of 1310 nm and 1550 nm are low loss windows. In DWDM systems, only the 1550nm transmission window is used. Which of the following is the main reason?

• A.  The 1550 nm wavelength region is suitable for long-distance transmission.
• B.  None of the above
• C.  The operating wavelength flatness area of EDFA is contained in this window.
• D.  The nonlinear effect in the 1550nm wavelength region is very small.

Which of the following description of the process for optimizing the line attenuation compensation anomaly is correct? (Multiple choice)

• A.  According to the user adjustment command, adjust the line attenuation of the OCh path to make the downstream light output reach the normal value.
• B.  The downstream power detection unit (OA) detects that the line attenuation deviation exceeds the threshold and reports the alarm to its own SCC board.
• C.  After receiving the alarm, the SOM obtains the OCh path corresponding to the alarm and adds it to the management path to be optimized.
• D.  The SCC board at the downstream site of the fault reports the alarm to the power detection unit (OA) of the first node through DCN communication, and reports the alarm to the SOM on the SC of the first node.

Which of the following are the components of general package format of PWE3? (Multiple Choice)

• A.  MPLS label
• B.  Payload
• C.  Type
• D.  CW (Control Word)

Which layer of the TCP/IP protocol is the TCP/UDP protocol located?

• A.  Data link layer
• B.  Transport layer
• C.  Application layer
• D.  Network layer

Which of the following protections need to use the APS protocol? (Multiple Choice)

• A.  ODUk SNCP protection
• B.  1:1 optical line protection
• C.  ODUk ring network protection
• D.  SW SNCP protection