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SSCP Practice Question: Which TWO are benefits of network segmentation…
Which TWO are benefits of network segmentation using VLANs? (Choose two.)
⚠ Common exam trap
ISC2 often tests the misconception that VLANs increase bandwidth, when in fact they only reduce unnecessary traffic (like broadcasts) but do not add physical throughput.
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
✓
Improved security through traffic isolation
VLANs segment a network into separate broadcast domains at Layer 2. By isolating traffic between VLANs, they prevent unauthorized access and contain potential threats, which directly improves security. Additionally, because each VLAN is its own broadcast domain, broadcast frames are confined to that VLAN, reducing overall broadcast traffic on the network.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Increased available bandwidth
Why it's wrong here
Bandwidth is not increased by VLANs alone.
- ✓
Improved security through traffic isolation
Why this is correct
Traffic in one VLAN cannot directly reach another VLAN.
- ✓
Reduced broadcast traffic
Why this is correct
Each VLAN is a separate broadcast domain.
- ✗
Elimination of routing requirements
Why it's wrong here
Inter-VLAN communication still requires routing.
- ✗
Simplified IP address management
Why it's wrong here
VLANs can actually add complexity to IP management.
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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.