NSE7 Advanced Networking and SD-WAN Practice Question
A network administrator is configuring SD-WAN rules with load balancing. They want to distribute HTTP traffic evenly across two WAN links based on the number of sessions. Which TWO settings should they use? (Choose two.)
⚠ Common exam trap
Many candidates confuse 'session' with 'volume' or assuming that performance SLA monitoring is required for any SD-WAN rule, when in fact load balancing algorithms are independent of SLA-based path selection.
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
✓
Ensure the SD-WAN rule matches HTTP traffic (e.g., using protocol or port criteria).
The SD-WAN rule must match HTTP traffic (e.g., using destination port 80 or protocol 6) to ensure only HTTP sessions are load-balanced. Option E is correct because setting the load balancing algorithm to 'session' distributes traffic based on the number of sessions, which aligns with the requirement to distribute HTTP traffic evenly across two WAN links by session count.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Ensure the SD-WAN rule matches HTTP traffic (e.g., using protocol or port criteria).
Why this is correct
The rule must match HTTP traffic to apply the load balancing algorithm to that traffic.
- ✗
Set the load balancing algorithm to 'volume'.
Why it's wrong here
Volume algorithm distributes based on traffic volume, not sessions.
- ✗
Create a performance SLA to monitor the links.
Why it's wrong here
Performance SLA is for quality measurement, not session distribution.
- ✗
Enable 'set update-static-route' on the SD-WAN rule.
Why it's wrong here
That setting updates static routes, not session distribution.
- ✓
Set the load balancing algorithm to 'session'.
Why this is correct
Session-based algorithm distributes new sessions evenly across members.
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