350-601 Network Practice Question
A data center network uses Cisco Nexus switches with VXLAN EVPN. Which two components are essential for VXLAN EVPN operation? (Choose two.)
⚠ Common exam trap
Cisco often tests the distinction between mandatory components (VTEPs and MP-BGP EVPN) and optional features (vPC, specific underlay protocols, or replication modes) to see if candidates understand that the underlay can be any IP-routed network and that multicast is not a requirement for VXLAN EVPN.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
VXLAN VTEPs on leaf switches.
VXLAN VTEPs (VXLAN Tunnel Endpoints) on leaf switches are essential because they perform the encapsulation and decapsulation of VXLAN frames, enabling Layer 2 overlay networks over a Layer 3 underlay. Without VTEPs, there is no mechanism to create the VXLAN tunnels that carry traffic between endpoints across the IP fabric.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
VXLAN VTEPs on leaf switches.
Why this is correct
VTEPs encapsulate and decapsulate VXLAN frames.
- ✗
OSPF as underlay routing protocol.
Why it's wrong here
Any routing protocol can be used; OSPF is not essential.
- ✓
MP-BGP EVPN control plane.
Why this is correct
Provides MAC/VTEP advertisement.
- ✗
VPC for host-facing links.
Why it's wrong here
VPC is optional for host redundancy.
- ✗
PIM-SM for multicast replication.
Why it's wrong here
Head-end replication can be used instead of multicast.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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