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SSCP Practice Question: Is designing a DMZ to host public-facing services
A security engineer is designing a DMZ to host public-facing services. Which two security best practices should be applied? (Choose two.)
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
✓
Use a screened subnet with two firewalls
A screened subnet with two firewalls creates a buffer zone, and allowing inbound traffic only on required ports minimizes exposure. Placing web servers on the internal network would expose them, sharing rules with the internal network increases risk, and full mesh connectivity between DMZ hosts facilitates lateral movement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use the same firewall rule set for DMZ and internal network
Why it's wrong here
Different zones require separate rules; a single set would either be too permissive for internal or too restrictive for DMZ.
- ✗
Place web servers on the internal network
Why it's wrong here
Web servers should be in the DMZ, not the internal network, to segregate public-facing services.
- ✗
Enable full mesh connectivity between DMZ hosts
Why it's wrong here
Hosts in the DMZ should be isolated to limit lateral movement if one is compromised.
- ✓
Use a screened subnet with two firewalls
Why this is correct
A screened subnet (DMZ) between two firewalls provides defense in depth for public services.
- ✓
Allow inbound traffic from internet to DMZ on required ports only
Why this is correct
Restricting inbound traffic to only necessary ports reduces the attack surface.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SSCP 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 SSCP exam.