H31-311 무료 덤프문제 온라인 액세스

Which of the following alarms does not trigger the AU-AIS alarm?

• A.R-LOS
• B.MS-AIS
• C.AU-LOP
• D.B2-EXC

SES: There are 5% or more than 5% bit error blocks or at least one defect (OCI/AIS/LCKAAE/LTCA1M/PLM) within one second.

• A.FALSE
• B.TRUE

After an optical fiber is connected according to the networking diagram, if a critical alarm is reported on the optical port, the SRV indicator on the line board is red.

• A.FALSE
• B.TRUE

The Erbium Doped Fiber Amplifier (EDFA) is a key component of the new-generation optical communication system. Which of the following are the features of the EDFA? (Multiple Choice)

• A.High gain
• B.Low noise index
• C.High output power
• D.Amplification of any wavelengths

Which of the following are the electrical-layer overheads of OTN? (Multiple Choice)

• A.OPUk
• B.ODUk
• C.OTUk
• D.OCh