SD-WAN-Engineer Deployment And Configuration Practice Question
What is the primary benefit of enabling 'Forward Error Correction' (FEC) on a high-latency WAN link?
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
✓
It improves performance for jitter-sensitive traffic
FEC adds redundant data to packets, allowing the receiver to reconstruct lost packets without retransmission.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
It improves performance for jitter-sensitive traffic
Why this is correct
FEC helps recover lost packets, crucial for voice/video.
- ✗
It bypasses the firewall
Why it's wrong here
Security is independent of FEC.
- ✗
It replaces the need for QoS
Why it's wrong here
FEC and QoS are complementary.
- ✗
It reduces total bandwidth usage
Why it's wrong here
FEC increases bandwidth usage.
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.