KCNA Cloud Native Architecture Practice Question
What is the role of an API gateway in a microservices architecture?
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 provide a single entry point for external clients to access multiple backend services
An API gateway acts as a single entry point for client requests, handling routing, authentication, rate limiting, and other cross-cutting concerns.
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 schedule pods on nodes
Why it's wrong here
Pod scheduling is done by the Kubernetes scheduler.
- ✗
To store application configuration
Why it's wrong here
Configuration is typically stored in ConfigMaps or external stores.
- ✗
To monitor container resource usage
Why it's wrong here
Monitoring is handled by tools like Prometheus.
- ✓
To provide a single entry point for external clients to access multiple backend services
Why this is correct
The API gateway routes requests to appropriate microservices and can aggregate responses.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This KCNA practice question is part of Courseiva's free CNCF 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 KCNA exam.