NetSec-Architect Zero Trust Architecture And Design Practice Question
An enterprise architect is designing a Zero Trust segmentation model where IoT devices (e.g., IP cameras, smart printers) operate on the same physical switches as corporate workstations. To prevent IoT devices from communicating with corporate servers while avoiding costly physical recabling, what mechanism should the architect implement on the Palo Alto Networks firewalls?
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
✓
Implement Device-ID classification combined with Dynamic Address Groups and least-privilege security policies to isolate IoT traffic
Combining User-ID, Device-ID, and granular App-ID/Security policies based on device category tags or MAC-based reservations allows micro-segmentation without separate physical cabling.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure a single global allow rule for all traffic originating from the switch management subnet
Why it's wrong here
Incorrect. A global allow rule completely violates Zero Trust.
- ✗
Disable Spanning Tree Protocol on all access layer switches
Why it's wrong here
Incorrect. Disabling STP causes loops, not security segmentation.
- ✗
Rely on physical VLAN separation exclusively without firewall inspection
Why it's wrong here
Incorrect. VLANs alone do not provide deep layer 7 inspection or prevent lateral movement if compromised.
- ✓
Implement Device-ID classification combined with Dynamic Address Groups and least-privilege security policies to isolate IoT traffic
Why this is correct
Correct. Device-ID identifies and classifies connected devices, allowing dynamic segmentation policies without physical recabling.
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
About these practice questions
Courseiva writes every NetSec-Architect question from scratch — 228 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. 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 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.