SD-WAN-Engineer Planning And Design Practice Question
During the design of a large-scale data center migration, you need to extend Layer 2 domains across the SD-WAN fabric. Which mechanism supports this requirement?
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
✓
L2-Over-SD-WAN (L2VPN)
Prisma SD-WAN supports L2 extension through encapsulation over the SD-WAN overlay.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
STP Bridge Group
Why it's wrong here
STP is for loop prevention, not domain extension.
- ✗
Proxy ARP
Why it's wrong here
Proxy ARP handles address resolution locally.
- ✓
L2-Over-SD-WAN (L2VPN)
Why this is correct
L2VPN functionality allows bridging segments across the fabric.
- ✗
BGP EVPN
Why it's wrong here
While a standard industry approach, Prisma SD-WAN uses specific proprietary tunnel encapsulation for L2 extension.
About these practice questions
One of 175 original SD-WAN-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 SD-WAN-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 SD-WAN-Engineer exam.