Which of the following service layer paths is required when creating OCh using the path method?

• A.OMS
• B.OTS
• C.Client
• D.ODUk

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Which of the following description of the DM12 board are correct? (Multiple choice)

• A.Accessing G.703 64 kbit/s co-directional service signals through the DB44 interface on the DM12 board
• B.One DX1 board can be used with two DM12
• C.Electrical signal input and output interfaces for DDN, Unframed E1 and sub-rate services
• D.Access the NX6bit/s and sub-rate service signals through the DB28 connector on the DM12 board.

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Which of the following is the data that needs to be collected and saved in the event of a failure? (Multiple Choice)

• A.Running status data of the NE and the board
• B.Equipment alarms and performance events
• C.Operation log of the network management
• D.Configuration data of the NE and the board

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Optical monitoring channel is used for monitoring of WDM optical transmission system. In the UU-T proposal, it is preferable to use a wavelength of 1510 nm at how much rate?

• A.64 kbit/s
• B.2 Mbit/s
• C.576 kbit/s
• D.192 kbit/s

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The ROADM site using WSMD9 board can support up to 9 dimensions. If it exceeds 9 dimensions, it can be implemented by cascading WSMD9 boards.

• A.TRUE
• B.FALSE

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