KCNA Cloud Native Architecture Practice Question
A platform engineer is explaining cloud-native architecture to a new team. The team asks which statement BEST describes the relationship between microservices and cloud-native architecture. Which answer is correct?
⚠ Common exam trap
The trap here is treating microservices as synonymous with cloud-native architecture, when cloud-native is a broader set of principles and practices.
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
✓
Microservices are one common architectural style used within cloud-native systems
Microservices are a common architectural style within cloud-native systems, valued for independent deployability, scalability, and fault isolation. They are not the only way to be cloud-native, and they do not remove the need for observability or decentralized data. The other statements are either too absolute or contradict established cloud-native practices, so the accurate description is that microservices are one common style.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Microservices are the only valid way to build cloud-native applications
Why it's wrong here
Cloud-native architecture is broader than microservices. It includes practices such as containerization, dynamic orchestration, observability, and declarative APIs. A monolithic application can also be cloud-native if it follows those practices. Claiming microservices are the only valid approach is too absolute and misrepresents the relationship, so this statement is incorrect.
- ✗
Cloud-native architecture requires every service to share a single database
Why it's wrong here
Sharing a single database across services creates tight coupling and undermines independent deployment and scaling. Cloud-native architecture generally favors decentralized data management, where each service owns its data. Requiring a single shared database contradicts common cloud-native guidance and is not an accurate description of the relationship between microservices and cloud-native architecture.
- ✓
Microservices are one common architectural style used within cloud-native systems
Why this is correct
Microservices are a widely adopted architectural style in cloud-native systems because they support independent deployment, scaling, and fault isolation. However, cloud-native architecture also includes other styles and practices. This statement correctly describes microservices as one common approach rather than the only one, matching the broader definition of cloud-native architecture.
- ✗
Microservices eliminate the need for observability and monitoring
Why it's wrong here
Microservices increase the number of moving parts, which makes observability and monitoring more important, not less. Distributed tracing, metrics, and logs are essential to understand behavior across services. Claiming that microservices remove the need for observability is technically wrong and would lead to poor operational outcomes in a cloud-native environment.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CNCF exam blueprint
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.