What are the prerequisites for creating a bidirectional MPLS tunnel? (Multiple Choice)

• A.The LSR ID of each NE is correctly configured.
• B.Port properties have been configured correctly
• C.Determine the bandwidth of the MPLS Tunnel
• D.Users have network administrator user rights of "Administrators" and above

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The following description of the cross-board of the OSN 8800 T64 subrack. Which is correct? (Multiple choice)

• A.XCT+SXM can support ODU0, 1, 2, and 3 levels of crossover.
• B.XCT+SXM can be used together to provide an ODUK crossover with a total capacity of 2.56 Tbit/s.
• C.XCT+SXM can be regarded as a whole when working. If any faulty, the two boards will be switched together.
• D.Enhanced subrack can only be configured with UXCT+USXM or UXCT+USXH

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The OCh path is created using the single station method. After the creation is completed, the 0ch path is not searched. Which are the possible reasons? (Multiple choice)

• A.errors in source and sink ports in the site
• B.Line attenuation is too large
• C.Missing logical fiber between sites
• D.Inconsistent wavelengths of the line boards at both ends of the source and sink

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For a 10G OTU board, the receiving end optical module uses PIN module. Which of the following receiving powers is in the normal receiving range of the board?

• A.9dBm
• B.-9dBm
• C.19dBm
• D.-19dBm

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VPLS (Virtual Private LAN Service) is a Layer 2 VP technology that simulates a local area network.

• A.FALSE
• B.TRUE

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