CND Network Perimeter Protection Practice Question
A security engineer is designing a segmented network perimeter using a traditional three-tier architecture. Which zone should house public-facing web servers and mail relay servers, ensuring they are isolated from both the internal trusted LAN and the public internet via distinct firewall contexts?
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
✓
Demilitarized Zone (DMZ)
A Demilitarized Zone (DMZ) is a perimeter network segment that sits between the internal corporate network and external untrusted networks like the internet, hosting public-facing services.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Management VLAN
Why it's wrong here
A management VLAN is reserved for out-of-band device administration and is kept strictly away from public internet exposure.
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Internal Trusted Zone
Why it's wrong here
The internal trusted zone houses corporate endpoints and databases, which should never be directly exposed to the public internet.
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Demilitarized Zone (DMZ)
Why this is correct
The DMZ hosts public-facing services so that if compromised, attackers cannot directly access the internal LAN.
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Guest Wireless Zone
Why it's wrong here
A guest wireless zone provides internet-only access for visitors and is isolated from internal assets, but it is not intended for hosting servers.
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 EC-Council exam blueprint
This CND practice question is part of Courseiva's free EC-Council 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 CND exam.