JNCIP-ENT EVPN Practice Question
Which TWO factors can cause an EVPN instance on a Junos device to fail in importing incoming Type-2 MAC/IP routes? (Choose two)
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
✓
The EVPN routing instance is missing or has an incorrect instance-type configured.
Route import failures in EVPN are typically caused by mismatched Route Targets between the advertising and receiving PE, or missing/incorrect EVPN routing instance configurations.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configuring an incorrect BGP router ID on the remote peer.
Why it's wrong here
An incorrect router ID usually prevents the BGP peering session from establishing entirely.
- ✗
Enabling MAC limit suppression on access ports.
Why it's wrong here
MAC limit suppression drops local access data-plane learning, not BGP control-plane route imports.
- ✓
The EVPN routing instance is missing or has an incorrect instance-type configured.
Why this is correct
Without a properly configured EVPN routing instance, the routing table cannot accept EVPN route imports.
- ✗
Incorrect loopback MTU settings on the physical underlay interfaces.
Why it's wrong here
MTU mismatches cause packet drops in the data plane for large frames, but do not prevent BGP route import in the control plane.
- ✓
A mismatch between the import route target on the receiving PE and the export route target on the advertising PE.
Why this is correct
If route targets do not match, the receiving PE drops the route and fails to import it into the instance.
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 |
About these practice questions
One of 332 original JNCIP-ENT practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.