QUESTION: 5

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

EDFA operating wavelength flat region includes this window
Small nonlinear effects in the 1550nm wavelength region
1550nm wavelength region is suitable for long distance transmission
1550nm window loss is smaller than 1310nm window

Answer(s): A

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QUESTION: 6

Which of the following alarms will be reported by the peer end when it is detected that the error code exceeds the limit in the B2 byte?

MS-AIS
RS-BBE
MS-REI
MS-BBE

Answer(s): C

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QUESTION: 7

In the CES service, which of the descriptions of "packet loading time" and "jitter buffer time" is wrong?

The jitter buffer time represents the size of the buffer
Packet loading time refers to the length of time for PW packets to load TDM frames
Packet loading time, the configuration of NEs at both ends must be the same
The value of the packet loading time cannot be less than the jitter buffer time

Answer(s): D

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