The following basic principles for fault location in WDM systems are (). (Multiple Choice)

• A.First single wave, followed by multiple waves
• B.First two-way, then one-way first
• C.First advanced, then low level
• D.First locate external and then location transmission

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The optical monitoring channel wavelength used by the ST2 board is: (Multiple choice)

• A.1491nm
• B.1471nm
• C.1511nm
• D.1510nm

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The service types supported by the PND2 board used by the OSN 8800 are: (Multiple choice)

• A.EPLAN
• B.EPL
• C.VPWS
• D.VPLS

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Which of the following statements are wrong about TE links? (Multiple Choice)

• A.The TE link path is a resource concept. It can be understood as an optical fiber with bandwidth information and protection attributes, but it does not correspond to the optical fiber. One fiber may correspond to multiple TE links.
• B.The intelligent network element sends its own bandwidth and other information to other intelligent peers in the network through the LSA in the form of a trace. Provide teaching support for routing and planning.
• C.The TE link is flooded to the entire network by the LMP protocol. Each intelligent network element saves the TE link information of the entire network.
• D.The verification of the TE link occurs before the control channel is established between adjacent nodes.

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When using the OSN8800 T32, if you want to set the ID number of the master and slave sub-racks, which board should be set?

• A.SCC
• B.EFI
• C.EFI2
• D.EFI1

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