SD-WAN-Engineer Troubleshooting Practice Question
Which THREE areas of configuration should you verify if a site cannot reach the local LAN gateway?
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
✓
Interface IP/Mask
Interface settings, VLAN tagging, and ARP resolution are critical for local LAN communication.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Application security policy
Why it's wrong here
Local LAN traffic typically bypasses these.
- ✓
Interface IP/Mask
Why this is correct
Must be on the same subnet as the gateway.
- ✓
VLAN tagging configuration
Why this is correct
Incorrect tagging prevents L2 communication.
- ✗
Controller tunnel status
Why it's wrong here
Only affects WAN connectivity.
- ✓
ARP table status
Why this is correct
Failure to resolve the gateway MAC address is a common symptom.
Visual reference
About these practice questions
This SD-WAN-Engineer question is part of Courseiva's 175-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 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.