The 40 Gbit/s and 100 Git/s coherent systems do not require dispersion compensation because the coherent board has a large dispersion tolerance. NG WDM does not support non-coherent networks and coherent networks for hybrid transmission.

• A.FALSE
• B.TRUE

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Which of the following protections need to use the APS protocol? (Multiple Choice)

• A.ODUk ring network protection
• B.1:1 optical line protection
• C.ODUk SNCP protection
• D.SW SNCP protection

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Since the EALC/ALC function is used in the SOM system, there is a possibility of business interruption during optical power adjustment.

• A.FALSE
• B.TRUE

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In a typical chained NG WDM network (such as A -> B -> C, A, B, and C are three sites), it is found that the official telephone number between the stations is not available during the commissioning. What are the possible reasons? (Multiple choice)

• A.B station SC2 board is damaged
• B.In the SC2 board configuration of station B, the configuration is incorrectly changed to "the official does not pass the optical port."
• C.C station receiving direction OA board damage

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MPLS-TP is a subset of MIPLS that removes connectionless IP-based forwarding and adds end-to-end OA functionality.

• A.FALSE
• B.TRUE

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