About the description of MUX VLAN, which is wrong?

• A.Enterprises can use the Principal PORT to connect to enterprise servers, separate PORT to connect enterprise customers and Group PORT to connect enterprise employees. In this way, enterprise customers and enterprise employees can access enterprise servers, and internal employees can communicate, enterprise customers cannot communicate, and enterprise customers and enterprise employees cannot communicate with each other.
• B.Each Group VLAN must have a Principal VLAN bound to it.
• C.After MUX VLAN is enabled on a port, you can use it again for VLAN mapping and VLAN stacking configuration.
• D.If the VLAN ID is already used for the principal VLAN, the VLAN can no longer be used for VLANIF interfaces, super VLANs and sub VLANs.

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When configuring BGP, if such an alarm is generated: "BGP/6/ESTABLISHED: OID [oid] The BGP FSM enters the Established state. (BgpPeerRemoteAddr = [BgpPeerRemoteAddrValue], BgpPeerLastError = [BgpPeerLastErrorValue], BgpPeerState = [BgpPeerStateValue] ])" Which of the following description is correct?

• A.The BGP neighbor has been established.
• B.Explain the problem of OPEN message negotiation between BGP neighbors.
• C.The alarm information is abnormal information and must be processed.
• D.Explain that the problem of TCP resulted in such alarm.

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Regarding the two working modes of PIM-DM and PIM-SM, the correct description is: (Multiple Choice)

• A.PIM-DM works in a "pull" mode of operation.
• B.PIM-SM is suitable for member-intensive multicast network structures.
• C.PIM-SM works in a "push" mode of operation.
• D.PIM-SM must require RP

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In IGMPv2, the destination IP of a specific group query is 224.0.0.1.

• A.False
• B.True

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Link Aggregation is a way to bundle a set of physical interfaces together as a logical interface to increase bandwidth. There are two types of link aggregation control protocols: manual load balancing mode and static LACP mode.

• A.False
• B.True

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