JNCIS-ENT Protocol Independent Routing Practice Question
You need to ensure that traffic entering interface ge-0/0/1 is forced into a specific forwarding routing instance named 'corp-fwd', regardless of the destination IP address in the packet header. Which configuration steps must you perform?
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
✓
Create a forwarding instance, write a firewall filter with 'then routing-instance corp-fwd', and apply the filter as input on ge-0/0/1.
Implementing FBF requires creating a forwarding instance, defining a firewall filter that matches the traffic and directs it to that instance, and applying the filter to the ingress interface.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create a forwarding instance, write a firewall filter with 'then routing-instance corp-fwd', and apply the filter as input on ge-0/0/1.
Why this is correct
This is the correct three-step workflow for configuring Filter-Based Forwarding in Junos.
- ✗
Create a virtual-router instance and apply a static default route pointing to ge-0/0/1.
Why it's wrong here
This configures standard routing, not Filter-Based Forwarding.
- ✗
Configure a routing policy with 'then export corp-fwd' and apply it under protocols.
Why it's wrong here
Export policies do not intercept ingress traffic for FBF.
- ✗
Enable proxy-ARP on ge-0/0/1 and assign the corp-fwd routing instance to the physical port.
Why it's wrong here
Proxy ARP does not perform filter-based routing redirection.
Visual reference
About these practice questions
This JNCIS-ENT question is part of Courseiva's 506-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 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.