350-401 Infrastructure Practice Question
A network administrator is implementing a VXLAN EVPN fabric in a data center. The requirement is to provide Layer 2 connectivity between two leaf switches for a VLAN that must be stretched across the fabric. Which EVPN route type is used to advertise MAC address reachability information?
⚠ Common exam trap
Test-takers frequently confuse the different EVPN route types, especially Type 2 with Type 3, which is used for BUM traffic distribution.
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
✓
Type 2 - MAC/IP Advertisement route
In a VXLAN EVPN fabric, MAC address reachability is advertised using Type 2 EVPN routes, also known as MAC/IP Advertisement routes. These routes allow leaf switches to learn remote MAC addresses and provide Layer 2 connectivity across the fabric. Type 2 routes are fundamental for the operation of EVPN-based VXLAN networks.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Type 1 - Ethernet Auto-Discovery route
Why it's wrong here
Type 1 EVPN routes are used for Ethernet Auto-Discovery and are primarily used for fast convergence and split-horizon in multihoming scenarios. They do not carry MAC address reachability information. Instead, they advertise Ethernet Segment Identifiers (ESIs) and can be used for aliasing and mass withdrawal. They are not used for MAC address advertisement in a VXLAN EVPN fabric.
- ✗
Type 3 - Inclusive Multicast Ethernet Tag route
Why it's wrong here
Type 3 EVPN routes are used for the distribution of multicast and broadcast traffic. They advertise the VTEP IP address and are used for ingress replication when multicast is not enabled in the underlay. They do not carry MAC address reachability information. Instead, they help build the flooding list for BUM traffic. Therefore, they are not used for advertising MAC addresses.
- ✗
Type 4 - Ethernet Segment route
Why it's wrong here
Type 4 EVPN routes are used for Ethernet Segment discovery and are used in multihoming scenarios to elect a designated forwarder. They advertise the Ethernet Segment Identifier (ESI) and are not used for MAC address reachability. They help with redundancy and failover but do not provide Layer 2 MAC address information for VXLAN EVPN.
- ✓
Type 2 - MAC/IP Advertisement route
Why this is correct
Type 2 EVPN routes are used to advertise MAC address and optionally IP address reachability. In a VXLAN EVPN fabric, leaf switches advertise their locally learned MAC addresses using Type 2 routes. This allows other leaf switches to learn remote MAC addresses and forward traffic accordingly. Type 2 routes are essential for Layer 2 connectivity and are the correct choice for advertising MAC address reachability.
Visual reference
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
Learn chapter
Route Redistribution and Filtering
Key term
Fabric Fundamentals
Fabric Fundamentals is the set of core concepts behind a network fabric, where switches and routers form a single logical system that simplifies traffic forwarding and automation.
Key term
Cisco Virtual Topology System
Cisco Virtual Topology System is a software-defined networking solution that creates and manages virtual network overlays across physical and virtual infrastructure for enterprise networks.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
This 350-401 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 350-401 exam.