Before creating an optical cross-connection, you need to manually configure the corresponding port of the corresponding board as a boundary port, for example, the line-side port of the FIU board between two sites.

• A.TRUE
• B.FALSE

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The main function of the transport layer in the Huawei ECC protocol stack is _____.

• A.Establish and maintain a MAC connection between neighboring network elements.
• B.Provide end-to-end communication services to the upper layer
• C.Provide data communication services.
• D.Establish and maintain an ECC routing table.

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Daily equipment maintenance items, excluding:

• A.Check the room temperature, humidity and cleanliness
• B.Check device sound alarms
• C.Check the fan box and clean the air filter
• D.Check the cabinet and board indicators

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Which of the following description are wrong about the path method to create a Client path?

• A.The creation or search of a new path must be possible if its upper service layer path already exists.
• B.Select the "Activate" checkbox. After the path is successfully created, it will be delivered to the NE layer. Otherwise, the path configuration text will only be saved on the network management side.
• C.If the route to be automatically calculated is different from the planned path, you can set the "constrained node" or "must pass through the node" to perform routing constraints.
• D.Create a client service path by using the path method. After the creation, the optical layer OCh path is automatically generated to reduce the secondary teaching of the path creation.

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

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