JNCIP-ENT EVPN Practice Question
When configuring VXLAN data plane encapsulation inside an EVPN routing instance on Junos OS, which logical interface type must be bound to the bridge domain to provide VXLAN VNI mapping?
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
✓
VLAN interface (vlan statement with vni)
In Junos OS, VXLAN encapsulation is configured using logical tunnel interfaces or integrated routing and bridging (IRB) interfaces mapped via a vni statement under the bridge-domains hierarchy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
lo0.0
Why it's wrong here
lo0.0 acts as the VTEP source IP source address, but is not the interface directly bound per VNI bridge domain.
- ✗
gre0
Why it's wrong here
gre0 is used for Generic Routing Encapsulation tunnels, not EVPN-VXLAN.
- ✓
VLAN interface (vlan statement with vni)
Why this is correct
Bridge domains configured with a specific vni identifier handle the mapping between VLANs and VXLAN VNIs.
- ✗
fxp0
Why it's wrong here
fxp0 is the out-of-band management interface on Junos devices.
About these practice questions
This JNCIP-ENT question is part of Courseiva's 332-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Juniper Networks exam blueprint
This JNCIP-ENT practice question is part of Courseiva's free Juniper Networks 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 JNCIP-ENT exam.