NGFW-Engineer PAN OS Device Setting Configuration Practice Question
Which type of interface is used for connecting to a Layer 3 network?
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
✓
Layer 3
A Layer 3 interface is required for routing traffic between subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Virtual Wire
Why it's wrong here
Virtual Wire is for transparent insertion.
- ✗
Layer 2
Why it's wrong here
Layer 2 interfaces are for switching.
- ✗
Aggregate
Why it's wrong here
Aggregate interfaces provide link redundancy.
- ✓
Layer 3
Why this is correct
Layer 3 interfaces handle IP routing.
Visual reference
About these practice questions
One of 190 original NGFW-Engineer 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 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.