VXLAN Control Planes JN0-683 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   Which statement accurately compares BGP EVPN and multicast-based control planes for VXLAN?

   • ABGP EVPN provides a centralized control plane, while multicast-based control planes are fully distributed.
   • BBGP EVPN uses BGP to distribute MAC/IP reachability information, while multicast-based control planes use multicast groups for VTEP discovery and BUM traffic.
   • CBGP EVPN relies on multicast groups for BUM traffic, while multicast-based control planes use unicast replication.
   • DBGP EVPN is only suitable for small-scale deployments, while multicast-based control planes are required for large-scale deployments.
   Reveal Solution Discussion Select an answer first
2. 12expert · hard

   A network engineer is troubleshooting a VXLAN EVPN fabric where a new server was added to a leaf switch. The server's MAC address is not being learned by remote VTEPs. The engineer verifies that the server is sending traffic and that the local MAC table on the leaf has the entry. What is the most likely reason the MAC is not being advertised to remote VTEPs?

   • AThe BGP session to the spine is down
   • BThe remote VTEPs are not configured with the same VNI
   • CThe server is using a multicast MAC address
   • DThe MAC is not associated with a VNI that is enabled for EVPN advertisement
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   Which statement correctly compares the scalability of BGP EVPN and multicast-based control planes for VXLAN?

   • ABGP EVPN scales better because it uses ingress replication for BUM traffic, avoiding the need for multicast in the underlay.
   • BMulticast-based control planes scale better because they do not require BGP.
   • CBoth approaches have identical scalability characteristics.
   • DMulticast-based control planes scale better because they use multicast for BUM traffic, which is more efficient.
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   In a BGP EVPN-based VXLAN, how does a VTEP discover other VTEPs in the same VXLAN segment?

   • ABy performing an ARP request across the underlay network.
   • BBy sending multicast join messages to a predefined multicast group.
   • CBy receiving EVPN route type 3 (IMET) routes from other VTEPs via BGP.
   • DBy using LLDP to exchange VTEP information.
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   How does a VTEP discover other VTEPs in a multicast-based VXLAN?

   • ABy joining the multicast group associated with the VXLAN segment.
   • BBy sending a unicast message to a central controller.
   • CBy exchanging BGP EVPN routes.
   • DBy using LLDP to exchange VTEP information.
   Reveal Solution Discussion Select an answer first