NGFW-Engineer PAN OS Networking Configuration Practice Question
How does the firewall determine which virtual router to use for a packet?
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
✓
Based on the virtual router assigned to the ingress interface
The firewall uses the virtual router associated with the ingress interface to perform the routing lookup for the packet.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Based on the zone of the destination interface
Why it's wrong here
Zones are for policy, not routing.
- ✗
Based on the destination port
Why it's wrong here
Ports are for security policy matching.
- ✗
Based on the source IP address
Why it's wrong here
Source IP doesn't define the VR.
- ✓
Based on the virtual router assigned to the ingress interface
Why this is correct
Routing happens within the context of the ingress VR.
About these practice questions
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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 Palo Alto Networks exam blueprint
This NGFW-Engineer practice question is part of Courseiva's free Palo Alto 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 NGFW-Engineer exam.