H31-331 試験問題を無料オンラインアクセス

The split ratio of the MON port to the OUT port is 1:99. How much dB is the MON power lower than the OUT port?
Which of the following is correct?

• A.25dB
• B.20dB
• C.15dB
• D.10dB

The name of the network layer that exists between the multiplexer and the demultiplexer, which of the following is true.

• A.OSC
• B.OCh
• C.OTS
• D.OMS

What are the main methods for suppressing nonlinear effects in the WDM system? (multiple choice)

• A.Improve the optical power of the transmitter signal
• B.Control signal optical power
• C.Good dispersion management
• D.Use large effective area fiber as the transmission medium
• E.Advanced light source technology

Which of the following statements about loopback operations is wrong?

• A.Pay attention to the use of fixed or adjustable light decay during loopback operation
• B.Loopback operation will affect normal business. It is recommended to use when traffic is small.
• C.The loopback method is suitable for the range of known faults. The fault range is divided into two sections and excluded separately. The faults it can eliminate can be board failures, line faults.
• D.When loopback operation, there is no need to pay attention to whether the dispersion compensation meets the system requirements.

When the OCH is created by the path method, you do not need to configure the wavelength of the WDM side port of the source and the OTU board.

• A.True
• B.False