The correct statement about the VRRP protocol version is ?

• A.VRRPv2 supports authentication
• B.VRRPv3 is only available for IPv6
• C.VRRPv2 is only available for IPv4
• D.VRRPv3 does not support authentication

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IGMP SSMMapping is bound to multicast through a static multicast source, so that members of IGMPv1 and IGMP2 can also access the SSM multicast network. The following statement about IGMPSSMMapping is wrong?( Radio).

• A.IGMP SSM Mapping does not process reporting messages from IGMPv3 In order to ensure that the same network segment runs any version
• B.The multicast address of the SSM is 23
• C.IGMP hosts can make SSM services run IGMPv3 on the multicast router socket connected to the network segment where the member host is located
• D.If the IGMP SSM Mapping feature is not enabled, neither IGMPv1 nor IGMPv2 supports multicast for deploying SSM modules

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A router receives a BGP route with the community attribute NO-Export , how will the router handle the BGP route?

• A.Advertise only to IBGP neighbors.
• B.Drop the route directly.
• C.No more advertising to other BGP routers.
• D.The route is advertised normally, but the route is not used to forward data.

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BGP4+ is running between two routers, and the neighbor relationship is normal, but the BGP routing table of the router on this side does not have a neighbor route entry.

• A.The route entry in the peer BGP route table is non-optimal.
• B.Peer ignore is configured on the peer
• C.The next hop address of the
• D.The peer is configured with active-route-advertise
• E.BGP route entry is unreachable

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HW users are transferring a very large number of files via TFTP. What protocol does TFTP rely on for transmission?

• A.ICMP and UDP
• B.FTP
• C.NFS
• D.UDP
• E.IP ?TCP

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