NetSec-Architect Zero Trust Architecture And Design Practice Question
An architect is optimizing security policies to support a Zero Trust model where contractors require access to specific internal legacy applications without gaining broad network access. Which architectural feature should be deployed to enforce least privilege access securely?
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
✓
GlobalProtect app-level ZTNA / Clientless VPN configured with explicit application portals and strict URL/App-ID authorization
GlobalProtect Clientless VPN or app-level ZTNA access allows users to access specific web-based or specific TCP applications without full network-layer tunneling, enforcing least-privilege access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Full-tunnel IPsec VPN granting access to the entire internal RFC1918 subnet space
Why it's wrong here
Incorrect. Full-tunnel VPN grants broad network access, violating Zero Trust least privilege.
- ✗
Disabling authentication and placing contractors on the guest Wi-Fi VLAN
Why it's wrong here
Incorrect. Guest Wi-Fi provides zero secure isolation or identity context for legacy apps.
- ✗
Open public-facing NAT rules on the perimeter firewall mapped to internal legacy application servers
Why it's wrong here
Incorrect. Exposing legacy apps via public NAT rules introduces severe vulnerability risks.
- ✓
GlobalProtect app-level ZTNA / Clientless VPN configured with explicit application portals and strict URL/App-ID authorization
Why this is correct
Correct. App-level ZTNA and clientless access restricts users strictly to authorized applications without granting subnet-level network access.
About these practice questions
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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 Palo Alto Networks exam blueprint
This NetSec-Architect practice question is part of Courseiva's free Palo Alto Networks 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 NetSec-Architect exam.