JNCIS-ENT Protocol Independent Routing Practice Question
Which Junos routing instance type is best suited when you want to run MPLS L3VPNs on a Provider Edge (PE) router?
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
✓
vrf
L3VPN routing instances are used on PE routers to maintain customer-specific VRF routing tables and exchange VPN-IPv4 routes via MP-BGP.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
forwarding
Why it's wrong here
Forwarding instances are restricted to FBF and lack routing protocol support.
- ✗
virtual-router
Why it's wrong here
Virtual-router does not support MPLS VPN route targets and MP-BGP signaling.
- ✓
vrf
Why this is correct
The 'vrf' (or vpn) instance type is used for Layer 3 VPNs.
- ✗
no-structural-instance
Why it's wrong here
This is an invalid routing instance type.
About these practice questions
Courseiva writes every JNCIS-ENT question from scratch — 506 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 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 JNCIS-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 JNCIS-ENT exam.