NetSec-Architect Specialized Security Domains Practice Question
An architect is designing an OT security segmentation model using the Purdue Enterprise Reference Architecture (PERA). Which zone typically represents the manufacturing operations and control cells (Level 2 and Level 3)?
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
✓
Operations / Control Zone (Level 2/3)
In PERA, Level 2 contains control systems (SCADA/HMI) and Level 3 contains manufacturing operations management, sitting between enterprise IT (Level 4) and process control devices (Level 1/0).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Cloud Analytics Zone (Level 6)
Why it's wrong here
Level 6 is not a standard PERA level.
- ✓
Operations / Control Zone (Level 2/3)
Why this is correct
Levels 2 and 3 represent supervisory control, HMI, and operational management systems.
- ✗
Enterprise IT Zone (Level 4/5)
Why it's wrong here
Level 4/5 is the enterprise IT and business planning network.
- ✗
DMZ Zone (Level 3.5)
Why it's wrong here
Level 3.5 is typically an industrial demilitarized zone (IDMZ) bridging IT and OT, not the control cells themselves.
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.