This KCNA practice question tests your understanding of cloud native architecture. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which of the following is a graduated CNCF project?
OpenTelemetry
Why wrong: OpenTelemetry is an incubating project.
K3s
Why wrong: K3s is a sandbox project.
KubeEdge
Why wrong: KubeEdge is an incubating project.
Prometheus
Prometheus is a graduated project for monitoring.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Prometheus
Prometheus is a graduated CNCF project, having reached the graduation maturity level in August 2018. It is a core monitoring and alerting toolkit widely adopted in cloud-native environments, and its graduation status reflects its stability, widespread use, and strong governance within the CNCF ecosystem.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
OpenTelemetry
Why it's wrong here
OpenTelemetry is an incubating project.
K3s
Why it's wrong here
K3s is a sandbox project.
KubeEdge
Why it's wrong here
KubeEdge is an incubating project.
Prometheus
Why this is correct
Prometheus is a graduated project for monitoring.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates may confuse 'graduated' with 'incubating' or 'sandbox' status, especially for popular projects like OpenTelemetry or KubeEdge that are widely used but have not yet reached the highest maturity level in the CNCF lifecycle.
Detailed technical explanation
CNCF project maturity levels progress from sandbox to incubating to graduated, with graduated projects meeting strict criteria for adoption, governance, and security. Prometheus uses a pull-based model for metrics collection, scraping targets via HTTP endpoints, and stores data in a custom time-series format with a powerful query language (PromQL). In real-world scenarios, Prometheus is often deployed alongside Grafana for visualization and Alertmanager for handling alerts, forming the backbone of many observability stacks in Kubernetes clusters.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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FAQ
Cloud Native Architecture — This question tests Cloud Native Architecture — Read the scenario before looking for a memorised answer..
The correct answer is: Prometheus — Prometheus is a graduated CNCF project, having reached the graduation maturity level in August 2018. It is a core monitoring and alerting toolkit widely adopted in cloud-native environments, and its graduation status reflects its stability, widespread use, and strong governance within the CNCF ecosystem.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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.
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