NSE7 Advanced Networking and SD-WAN Practice Question
Which SD-WAN load balancing algorithm distributes traffic based on the number of active sessions per interface?
⚠ Common exam trap
A common mix-up: candidates confuse 'Sessions' with 'Volume' because both involve traffic distribution, but Volume measures bytes while Sessions measures connection counts, and the exam expects you to distinguish between these two distinct load-balancing metrics.
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
✓
Sessions
The Sessions algorithm in Fortinet SD-WAN distributes new sessions by selecting the interface with the fewest currently active sessions. This ensures balanced session distribution across WAN links, preventing any single interface from becoming overloaded with connections while others remain underutilized.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Sessions
Why this is correct
Sessions algorithm distributes based on number of sessions per interface.
- ✗
Volume
Why it's wrong here
Volume balances by bytes transferred.
- ✗
Source-destination IP
Why it's wrong here
Source-dest IP uses a hash of source and destination IPs.
- ✗
Spillover
Why it's wrong here
Spillover sends traffic to a backup interface when the primary exceeds a threshold.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This NSE7 practice question is part of Courseiva's free Fortinet 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 NSE7 exam.