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CCSP Practice Question: A security architect is designing network…
A security architect is designing network segmentation for a multi-tier application in the cloud. Which TWO configurations help enforce micro-segmentation? (Choose two.)
⚠ Common exam trap
ISC2 often tests the distinction between coarse network controls (like a single ACL) and granular micro-segmentation mechanisms (like virtual firewalls or security groups), trapping candidates who confuse a bastion host or broad ACLs with proper tier isolation.
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
✓
Deploy a virtual firewall between tiers.
Deploying a virtual firewall between tiers (e.g., between web, application, and database tiers) enforces micro-segmentation by inspecting and controlling east-west traffic at the application layer. This allows granular, stateful filtering of traffic based on specific protocols, ports, and even application-level attributes, preventing lateral movement of threats within the cloud environment.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Allow all traffic from the internet.
Why it's wrong here
Allowing all traffic removes segmentation.
- ✗
Use a bastion host for all administrative access.
Why it's wrong here
Bastion host is for secure admin access, not micro-segmentation.
- ✗
Use a single network ACL for all subnets.
Why it's wrong here
A single ACL does not provide granular segmentation.
- ✓
Deploy a virtual firewall between tiers.
Why this is correct
A virtual firewall enforces segmentation and inspection.
- ✓
Implement security groups per application tier.
Why this is correct
Security groups per tier allow fine-grained traffic control between tiers.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CCSP practice question is part of Courseiva's free ISC2 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 CCSP exam.