Quick Answer
The answer is to enable session-pickup. This is the most important HA configuration setting for UDP-based voice traffic failover because UDP is connectionless, meaning the secondary FortiGate has no record of the session unless it is explicitly synchronized. Without session-pickup, the secondary firewall would treat incoming voice packets as unknown traffic and drop them, causing a noticeable interruption in real-time streams like VoIP. On the Fortinet NSE 7 Advanced Security NSE7 exam, this question tests your understanding of how session-pickup differs from session-persistence or simple FGCP synchronization—many candidates mistakenly focus on heartbeat settings or failover triggers, but the core requirement here is stateful UDP session awareness. A common trap is assuming that UDP traffic, being stateless, will automatically resume after failover; it will not. Remember the mnemonic: "UDP has no handshake, so session-pickup must take."
This NSE7 practice question tests your understanding of enterprise firewall and vdoms. 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 network engineer is configuring an HA pair of FortiGate firewalls. They want to ensure that session failover occurs for UDP-based voice traffic with minimal interruption. Which HA configuration setting is most important for achieving this goal?
Enable session-pickup
session-pickup enables the backup unit to take over existing sessions.
Enable session-pickup-delay
Why wrong: This delays session pickup but does not enable it.
Set ha-pickup-delay to 0
Why wrong: ha-pickup-delay is not a valid setting; the correct setting is session-pickup.
Configure ha-mgmt-interfaces
Why wrong: ha-mgmt-interfaces are for management access, not session failover.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Enable session-pickup
Session-pickup is the correct setting because it enables the secondary FortiGate to synchronize UDP session state information from the primary, allowing seamless failover of voice traffic without requiring new session establishment. UDP is connectionless, so without session-pickup, the secondary would drop the traffic as unknown, causing noticeable interruption in real-time voice streams.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Enable session-pickup
Why this is correct
session-pickup enables the backup unit to take over existing sessions.
Related concept
Read the scenario before looking for a memorised answer.
Enable session-pickup-delay
Why it's wrong here
This delays session pickup but does not enable it.
Set ha-pickup-delay to 0
Why it's wrong here
ha-pickup-delay is not a valid setting; the correct setting is session-pickup.
Configure ha-mgmt-interfaces
Why it's wrong here
ha-mgmt-interfaces are for management access, not session failover.
Common exam traps
The trap here is that candidates confuse 'session-pickup-delay' or 'ha-pickup-delay' with the actual session synchronization mechanism, assuming any delay-related setting is key, when in fact the fundamental enabler is session-pickup itself.
Detailed technical explanation
Session-pickup works by synchronizing the session table from the primary to the secondary via the HA heartbeat link, using a proprietary protocol that includes UDP session tuples (source/destination IP, ports). For UDP voice traffic like SIP or RTP, the secondary must have the full session state to forward packets immediately; otherwise, it would perform a SYN check (which UDP lacks) and drop the traffic. In real-world deployments, session-pickup is often combined with 'session-pickup-connectionless' to handle UDP without expecting a TCP-like handshake.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Enterprise Firewall and VDOMs — This question tests Enterprise Firewall and VDOMs — Read the scenario before looking for a memorised answer..
The correct answer is: Enable session-pickup — Session-pickup is the correct setting because it enables the secondary FortiGate to synchronize UDP session state information from the primary, allowing seamless failover of voice traffic without requiring new session establishment. UDP is connectionless, so without session-pickup, the secondary would drop the traffic as unknown, causing noticeable interruption in real-time voice streams.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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