SD-WAN-Engineer Troubleshooting Practice Question
When troubleshooting QoS, what does a high 'drop' count in the interface statistics imply?
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 congestion
High drop counts indicate that the interface is congested and exceeding the configured bandwidth limit.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Hardware failure
Why it's wrong here
Hardware failures usually cause link loss.
- ✗
Security policy blocking
Why it's wrong here
Security drops show up in security logs.
- ✓
Interface congestion
Why this is correct
Drops occur when traffic exceeds the shaping rate.
- ✗
The ISP is down
Why it's wrong here
Down links would show 'down' status, not drops.
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.