QUESTION: 5

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)

High gain
High output power
Amplification of any wavelengths
Low noise index

Answer(s): A,B,D

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QUESTION: 6

When the transmit end detects that the b6-b8 of the K2 byte is 110, it indicates that the () alarm is reported at the transmit end.

MS-AIS
R-LOS
R-LOF
MS-RDI

Answer(s): A,B,C

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QUESTION: 7

Which of the following statements about U2000 license is incorrect?

Each license file corresponds to the equipment serial number (ESN) of one U2000 computer, and therefore can be used only on the corresponding computer.
Formal U2000 license varies depending on operating system platforms. You must apply for a U2000 license based on the specific operating system.
The U2000 license file is named in the "xxxxxxx.dat" format.
Do not modify license files. Otherwise, the license files will fail.

Answer(s): B

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QUESTION: 8

The PRBS can be used to test whether an SDH service is normal and whether the protection switching function is normal.

TRUE
FALSE

Answer(s): A

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QUESTION: 5

QUESTION: 6

QUESTION: 7

QUESTION: 8