The reasons for the discrete business are? (Multiple choice)

• A.The logical fiber connection of the network element is inconsistent with the physical fiber connection.
• B.The cross-connection configuration on the network element is wrong.
• C.The network element side configuration data is not uploaded to the U2000.
• D.There is an outbound subnet service whose source or sink port is not within the scope of network management.

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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.TRUE
• B.FALSE

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The following description of the operation of the device, the error is:

• A.CLASS 1M means low optical power, no damage to eyes or skin
• B.Equipment needs safety grounding
• C.Regularly clean the air filter to facilitate heat dissipation
• D.Wear an ESD-preventive wrist strap or gloves to prevent static electricity from damaging the board.

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Which of the following unified circuit boards can support the intersection of VC, packet and ODUk? (Multiple choice)

• A.U210
• B.HUNQ2
• C.HSNS4
• D.UNQ2

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During the configuration of the E-LAN, the "MAC Address Learning Mode" can be set to SVL and IVL. SVL is a stand-alone VLAN learning, and IVL is a shared VLAN learning.

• A.TRUE
• B.FALSE

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