The correct statement about the IGMP proxy is ? Multi-select

• A.IGMP proxy device cannot send query messages to downstream member hosts in place of the IGMP queryer to maintain group membership
• B.IGMP proxy is typically deployed on devices between hosts that are members of the access device The
• C.The downstream interface of the IGMP proxy device generates multicast relay table items
• D.IGMP proxy can detect the link status with the linkage through the information of the member host joining/leaving the multicast group, and realize the rapid switching of the primary and standby device links

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In PIM-SM, the description of RP is incorrectly ?

• A.RPs can be responsible for the forwarding of several or all multicast groups, and there can be an RP in the network
• B.All members of the group and the multicast sources that send multicast data to the group converge to the unique RP
• C.The initial multicast streams for all groups in the shared tree are forwarded to the receiver via RP
• D.An RP can serve multiple multicast groups at the same time, a multicast group can correspond to multiple RPs

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Which of the following statements about RADIUS is correct?( Single choice questions).

• A.RADIUS authentication and Portal authentication cannot be used together because the Portal server can typically be used to authenticate users when portal authentication is deployed.
• B.MAC authentication does not require a username password, so you cannot use RADIUS to authenticate the user.
• C.RADIUS supports both wired and wireless access modes.
• D.SEPARATION OF RADIUS PROTOCOL AUTHENTICATION, AUTHORIZATION, AND AUDIT.

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You need to access the subnets of different VPNs in the VXLAN network , such as information about one subnet Bottom: RT=10:1ORT.100:1000 Export 1000 in EVPN instance and RT-100-100 in VPN instance.
Which of the following can be basketed for another subnet?

• A.EVPN implements 1000:1000 export
• B.In VPN instances, it is 10:10
• C.1000:1000 appears in VPN instances
• D.All EVPN instances are 1000:1000

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When deploying BGP/MPLS IPVPN, OSPF's VPN route tag is not present
The extended properties of MP-BGP are passed only locally, only locally, and only meaningful on routers that receive MP-BGP routes and generate OSPF LSAs.

• A.TRUE
• B.FALSE

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