NSE7 Advanced VPN and Zero Trust Practice Question
A company wants to deploy ZTNA to secure access to internal applications for remote employees. They have a FortiGate with a public IP and internal servers. Which deployment mode should they choose to minimize changes to existing firewall rules?
⚠ Common exam trap
Watch out — candidates often assume any ZTNA deployment requires VPN tunnels (SSL or IPsec) and overlook the proxy-based mode, which is specifically designed to avoid firewall rule changes by operating at Layer 7 without tunnel overhead.
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
✓
Proxy-based ZTNA
Proxy-based ZTNA (Option D) is correct because it uses a forward proxy architecture that intercepts traffic at Layer 7, allowing the FortiGate to enforce ZTNA access policies without modifying existing firewall rules. The proxy terminates the client connection and initiates a new connection to the internal server, so no inbound port forwarding or firewall rule changes are needed for the internal servers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
SSL VPN with ZTNA
Why it's wrong here
SSL VPN also requires rule changes.
- ✗
IPsec VPN with ZTNA
Why it's wrong here
IPsec VPN requires additional rules for VPN traffic.
- ✗
Both proxy-based and IPsec VPN
Why it's wrong here
Both would require more changes than proxy alone.
- ✓
Proxy-based ZTNA
Why this is correct
Proxy-based ZTNA uses a single policy and does not require modifying existing rules.
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JA
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.