Use end-to-end path configuration circuit on the network management, then there will be no discrete services on the network management, and it can ensure that the configured circuit is complete.

• A.TRUE
• B.FALSE

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In the packet mode of Huawei Hybrid MSTP equipment, which Ethernet services are supported? (multiple choice)

• A.E_LAN
• B.E_AGGR
• C.E_Line

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The LPT (Link Pass Through) function is used in scenarios where WDM equipment accesses FE/GE/10GE LAN services. The correct statement about LPT is: (multiple choice)

• A.It enables the user equipment to perceive the link status information by turning off and turning on the laser of the wavelength division device, thereby triggering the user equipment to activate the business protection function, and select the main or backup link for communication
• B.From the network level, ALS is similar to the Link Pass Through (Link Pass Through) function. The difference is mainly reflected in the applicable services, fault transmission methods and laser restart mechanism.
• C.By adding overhead bytes supporting the LPT protocol to the WDM side signal frame format, the operating status of the network access point or service network can be monitored.
• D.The implementation of the LPT function can be divided into port-based LPT and service-based LPT.

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The following are the time slot optimization steps (multiple choice)

• A.Analyze the resource evaluation report, focus on low-level crossover resources and line time slot utilization, focus on the location of bottlenecks, and confirm the principle of routing time slot optimization with customers.
• B.Generate the time slot optimization plan in AMS5000 according to the optimization principle, and write the implementation plan.
• C.Data collection and production optimization plan: Consistency verification of the customer's network management network element data, fiber and cable connection, and path data across the entire network: and process the deactivation business in the network, and confirm the one-way business in the network.
• D.Clean up discrete services before time slot optimization, delete junk services, and confirm with customers to complete or delete and reconstruct defective services.

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A network is configured with 1+1 protection on the board. On a certain day, the working channel has a condition that triggers protection switching, but the service cannot be automatically switched to the protection channel, resulting in service interruption.
The cause of the failure may be: (multiple choice)

• A.The configuration of the relay board between the source and sink is incorrect
• B.Protection group configuration error
• C.The optical fiber connection of the board is wrong
• D.There is an error in the protection channel
• E.A lock switch or forced switch command is implemented

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