NSE7_SDW Security Profiles Routing And IPsec Practice Question
An administrator configures an SD-WAN health check with multiple probes (e.g., ping and HTTP) to monitor a set of IPsec VPN tunnels. Which THREE criteria or settings govern how FortiOS determines whether an SD-WAN member has met or failed the performance SLA? (Choose three)
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
✓
The restoretime parameter, which specifies how many consecutive successful probes are required before restoring a failed member to healthy status
FortiOS SD-WAN health check SLA criteria evaluate packet loss, jitter, latency, and threshold failures. When multiple criteria or probes are used, settings such as latency-threshold, packet-loss-threshold, jitter-threshold, and failtime/restoretime determine state transitions.
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 BGP AS number assigned to the WAN interface gateway
Why it's wrong here
BGP AS numbers do not affect SD-WAN SLA threshold calculations.
- ✓
The restoretime parameter, which specifies how many consecutive successful probes are required before restoring a failed member to healthy status
Why this is correct
Correct. Restoretime ensures stability by requiring multiple consecutive successful probes before returning a recovered link to service.
- ✗
The physical cable length calculated in meters between the FortiGate and the nearest ISP switch
Why it's wrong here
Physical cable length is not a metric used by FortiOS SD-WAN health checks.
- ✓
The failtime parameter, which dictates how many consecutive probe failures must occur before the member is marked as failed
Why this is correct
Correct. Failtime determines the sensitivity of the health check before triggering a state change.
- ✓
Configured thresholds for latency, jitter, and packet loss that a member must remain under to be considered meeting the SLA
Why this is correct
Correct. SLA targets define maximum acceptable values for latency, jitter, and packet loss.
Quick reference
VPN Protocol Comparison
| Protocol | Port | Encryption | Authentication | Use Case |
|---|---|---|---|---|
| IKEv2 / IPsec | UDP 500 / 4500 | AES-256 | Certificates / PSK | Site-to-site & remote access |
| SSL / TLS VPN | TCP 443 | TLS 1.3 | Certificates / MFA | Clientless remote access |
| L2TP / IPsec | UDP 1701 | AES (IPsec) | PSK / Certificates | Legacy remote access |
| WireGuard | UDP 51820 | ChaCha20 | Public keys | Modern high-performance VPN |
| PPTP | TCP 1723 | MPPE (weak) | MS-CHAPv2 | Legacy — avoid in production |
PPTP is considered insecure. IKEv2/IPsec and SSL VPN are the current recommended options.
About these practice questions
One of 92 original NSE7_SDW 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 Fortinet exam blueprint
This NSE7_SDW 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_SDW exam.