SSCP Network and Communications Security Practice Question
A security engineer is designing a network segmentation strategy to isolate a DMZ containing public-facing web servers from the internal corporate network. Which TWO controls should be implemented? (Select 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
✓
Separate VLANs for DMZ and internal networks
A firewall with rules restricting traffic between DMZ and internal networks, and separate VLANs for DMZ and internal networks, are key segmentation controls. IDS/IPS are detection, not segmentation. NAC controls access, not segmentation. DMZ subnet is a concept, not a control.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Separate VLANs for DMZ and internal networks
Why this is correct
VLANs provide logical segmentation at Layer 2.
- ✓
A firewall that only permits necessary inbound traffic to the DMZ and restricts outbound traffic from the DMZ to internal
Why this is correct
Firewall rules between segments enforce traffic control.
- ✗
Network Access Control (NAC) on all endpoints
Why it's wrong here
NAC controls device access, not segmentation between networks.
- ✗
A separate IP subnet for the DMZ
Why it's wrong here
A subnet is a logical addressing scheme, not a control itself; segmentation requires VLAN or firewall.
- ✗
An intrusion detection system (IDS) monitoring traffic between segments
Why it's wrong here
IDS is for detection, not segmentation.
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Same concept, more angles
1 more way this is tested on SSCP
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is designing a network with multiple security zones. Which TWO of the following are best practices for network segmentation? (Select TWO)
medium- ✓ A.Place a firewall between each security zone to enforce traffic filtering.
- B.Use a single flat network to reduce complexity.
- ✓ C.Implement VLANs to logically separate traffic within a switch.
- D.Disable logging on inter-zone firewalls to improve performance.
- E.Place all servers in the same broadcast domain for easier management.
Why A: Placing firewalls between zones and using VLANs for logical separation are key segmentation practices. DMZ is a specific zone, not a universal practice.
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.