SDSI Application Security Design Practice Question
When designing security for a microservices architecture, why should you implement a 'Zero Trust' approach at the service level?
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
✓
To ensure that every service-to-service call is authenticated and authorized
Zero Trust assumes the network is compromised, requiring explicit authentication and authorization for every request, regardless of origin.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To rely solely on network perimeter security
Why it's wrong here
Zero Trust explicitly rejects the idea that perimeter security is sufficient.
- ✓
To ensure that every service-to-service call is authenticated and authorized
Why this is correct
Zero Trust mandates this to prevent unauthorized lateral movement.
- ✗
To increase the latency of inter-service communication
Why it's wrong here
Increased latency is a cost, not a design goal.
- ✗
To simplify the management of firewall rules
Why it's wrong here
Zero Trust increases the complexity of policy management, it does not simplify it.
About these practice questions
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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.