SDSI Application Security Design Practice Question
You are designing security for a microservices environment. You want to ensure that if one service is compromised, it cannot easily move laterally to other services. What is the most effective architectural design choice?
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
✓
Implement microsegmentation between services
Microsegmentation restricts communication to only the necessary paths, preventing attackers from moving across 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.
- ✗
Keep all services on the same VLAN
Why it's wrong here
This enables unrestricted lateral movement.
- ✓
Implement microsegmentation between services
Why this is correct
Microsegmentation is explicitly designed to stop lateral movement.
- ✗
Disable all internal firewalls for better performance
Why it's wrong here
This creates a massive security vulnerability.
- ✗
Use a single shared database for all services
Why it's wrong here
A shared database is a major security risk and a single point of failure.
About these practice questions
This SDSI question is part of Courseiva's 298-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
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 Cisco exam blueprint
This SDSI practice question is part of Courseiva's free Cisco 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 SDSI exam.