CCNP Virtualization Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  LISP with a Map-Server and Map-Resolver

  Why it's wrong here

  LISP with Map-Server and Map-Resolver roles is the control plane used by Cisco SD-Access for fabric endpoint registration, not by a Nexus 9000 VXLAN EVPN deployment. Deploying it here would add an unnecessary overlay protocol and would not interoperate with the EVPN route reflectors that the leaf must peer with.

• ✗

  OSPFv3 with the IPv6 unicast address family

  Why it's wrong here

  OSPFv3 distributes IPv6 prefix reachability and is used here only for underlay loopback reachability, not for overlay MAC or IP address distribution. It has no mechanism to carry MAC addresses or VTEP endpoint information, so enabling it would not satisfy the requirement to signal overlay reachability between leaf switches in the fabric.

• ✓

  MP-BGP with the Layer 2 EVPN address family

  Why this is correct

  EVPN uses MP-BGP with the L2VPN EVPN address family to advertise MAC addresses, IP-to-MAC bindings, and VTEP reachability in a VXLAN fabric. Enabling this address family in the leaf's BGP configuration lets the switch exchange Type 2 and Type 3 routes with the spine route reflectors, which is exactly the overlay control plane required here.

• ✗

  PIM sparse mode with an Anycast-RP

  Why it's wrong here

  PIM sparse mode with Anycast-RP is a multicast routing mechanism that can be used for underlay replication in a VXLAN flood-and-learn fabric, but it does not distribute MAC or IP reachability information. EVPN removes the need for multicast underlay replication, so PIM is not the overlay control plane required in this scenario.