The new session is sent to the secondary member because the primary’s spillover threshold would be exceeded. The spillover algorithm continuously evaluates whether the current load on the primary member, plus the bandwidth required by a new session, would surpass the configured threshold; if so, the session is immediately diverted to the next available member in the SD-WAN rule. This behavior prevents oversubscription and ensures that the primary link remains within its defined capacity. On the Fortinet NSE 7 Advanced Security NSE7 exam, this scenario tests your understanding of how spillover differs from session-based load balancing—a common trap is assuming the algorithm only checks current load at the moment a session arrives, when in fact it projects the total load after adding the new session. Remember the memory tip: “Spillover looks ahead, not behind—if adding the new session breaks the ceiling, it spills to the next member.”
NSE7 Advanced Networking and SD-WAN Practice Question
This NSE7 practice question tests your understanding of advanced networking and sd-wan. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A FortiGate is configured with an SD-WAN rule using 'spillover' algorithm. The primary member has a spillover threshold of 100 Mbps. Traffic of 80 Mbps is currently flowing through the primary member. A new session requiring 30 Mbps arrives. What will happen?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The new session is sent to the secondary member because the primary threshold would be exceeded.
Spillover algorithm will direct the new session to the secondary member because the primary's current load (80 Mbps) plus the new session (30 Mbps) would exceed the threshold (100 Mbps).
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The new session is sent to the primary member because the current load is below the threshold.
Why it's wrong here
The algorithm considers the projected load, not just current load. Adding 30 Mbps would exceed the threshold.
✓
The new session is sent to the secondary member because the primary threshold would be exceeded.
Why this is correct
Spillover sends the session to the next available member when adding it would exceed the threshold.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The new session is dropped because no member can handle it.
Why it's wrong here
The session would be routed to another member, not dropped.
✗
The primary member's threshold is dynamically increased.
Why it's wrong here
Thresholds are static; they are not changed dynamically.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the NSE7 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which NSE7 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Advanced Networking and SD-WAN — This question tests Advanced Networking and SD-WAN — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The new session is sent to the secondary member because the primary threshold would be exceeded. — Spillover algorithm will direct the new session to the secondary member because the primary's current load (80 Mbps) plus the new session (30 Mbps) would exceed the threshold (100 Mbps).
What should I do if I get this NSE7 question wrong?
Identify which NSE7 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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