350-601 Network Practice Question
Which BGP variant is commonly used in spine-leaf fabrics to advertise EVPN routes for VXLAN?
⚠ Common exam trap
Cisco often tests the distinction between the control-plane protocol (MP-BGP EVPN) and the data-plane encapsulation (VXLAN), so the trap here is that candidates confuse the underlay routing protocol (e.g., OSPF or eBGP IPv4 unicast) with the overlay control-plane protocol needed for EVPN route advertisement.
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
✓
MP-BGP with EVPN address family
MP-BGP with the EVPN address family (AFI 25 / SAFI 70) is the control-plane protocol used in VXLAN spine-leaf fabrics to advertise MAC/VTEP reachability, host routes, and integrated routing and bridging (IRB) information. This allows the spine to act as a route reflector, distributing EVPN type-2 (MAC/IP) and type-3 (IMET) routes to all leaf nodes, enabling efficient, loop-free overlay forwarding.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
MP-BGP with EVPN address family
Why this is correct
MP-BGP with EVPN address family (AFI L2VPN, SAFI EVPN) is used for VXLAN control plane.
- ✗
OSPF with opaque LSA
Why it's wrong here
OSPF is not used for EVPN.
- ✗
eBGP with standard IPv4 unicast
Why it's wrong here
Standard BGP does not carry EVPN routes.
- ✗
iBGP with standard IPv4 unicast
Why it's wrong here
Same reason; EVPN requires MP-BGP.
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
Go deeper
Related to this question
About these practice questions
Courseiva writes every 350-601 question from scratch — 984 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-601 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-601 exam.