- A
Prometheus
Prometheus is a graduated CNCF project, having reached the graduation maturity level in August 2018. It is a core monitoring and alerting toolkit.
- B
Flux
Why wrong: Flux is an incubation-level CNCF project, not graduated. It is a continuous delivery tool for Kubernetes.
- C
Backstage
Why wrong: Linkerd is a graduated CNCF project, having reached the graduation maturity level in July 2021. It is a service mesh for Kubernetes.
- D
ArgoCD
Why wrong: ArgoCD is an incubation-level CNCF project, not graduated. It is a declarative GitOps tool for Kubernetes.
Question 296 of 997
Identifying CNCF Graduated Projects
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?
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
✓
Prometheus
Prometheus is a graduated CNCF project (graduated August 2018, the second project ever to graduate after Kubernetes). Backstage, Flux, and ArgoCD are CNCF projects at lower maturity levels in this context — the question tests knowledge of the CNCF project maturity ladder: sandbox, incubating, graduated.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Prometheus
Why this is correct
Prometheus is a graduated CNCF project, having reached the graduation maturity level in August 2018. It is a core monitoring and alerting toolkit.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Flux
Why it's wrong here
Flux is an incubation-level CNCF project, not graduated. It is a continuous delivery tool for Kubernetes.
- ✗
Backstage
Why it's wrong here
Linkerd is a graduated CNCF project, having reached the graduation maturity level in July 2021. It is a service mesh for Kubernetes.
- ✗
ArgoCD
Why it's wrong here
ArgoCD is an incubation-level CNCF project, not graduated. It is a declarative GitOps tool for Kubernetes.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap is that candidates may assume only one project is correct, but both Prometheus and Linkerd are graduated CNCF projects. Pay close attention to each project's maturity level.
Detailed technical explanation
How to think about this question
The CNCF project maturity model has three levels: sandbox, incubating, and graduated. Graduated projects must pass a rigorous evaluation including adoption by at least three end users, a documented governance structure, and a clear security audit. Prometheus, along with Kubernetes, Envoy, and CoreDNS, is one of the few projects to have reached graduation, reflecting its critical role in the cloud-native ecosystem.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the KCNA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Cloud Native Architecture — study guide chapter
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FAQ
Questions learners often ask
What does this KCNA question test?
Cloud Native Architecture — This question tests Cloud Native Architecture — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Prometheus — Prometheus is a graduated CNCF project (graduated August 2018, the second project ever to graduate after Kubernetes). Backstage, Flux, and ArgoCD are CNCF projects at lower maturity levels in this context — the question tests knowledge of the CNCF project maturity ladder: sandbox, incubating, graduated.
What should I do if I get this KCNA question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
4 more ways this is tested on KCNA
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which of the following is a graduated CNCF project?
medium- A.OpenTelemetry
- B.K3s
- C.KubeEdge
- ✓ D.Prometheus
Why D: 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.
Variation 2. Which TWO of the following are CNCF graduated projects? (Select 2)
medium- ✓ A.Prometheus
- B.Kyverno
- C.Knative
- ✓ D.Envoy
- E.ArgoCD
Why A: Prometheus and Envoy are both CNCF graduated projects. CoreDNS is also graduated, but the question asks for two; Fluentd and Helm are both graduated as well, but the correct answers here are Prometheus and Envoy.
Variation 3. Which CNCF project is at the 'Graduated' maturity level and is widely used for container orchestration?
medium- ✓ A.Kubernetes
- B.Prometheus
- C.Envoy
- D.Helm
Why A: Kubernetes is the correct answer because it is the only CNCF project at the 'Graduated' maturity level that is specifically designed and widely adopted for container orchestration. It automates deployment, scaling, and management of containerized applications, making it the de facto standard in cloud-native environments.
Variation 4. Which CNCF project provides a graduated service mesh implementation that includes features like traffic management, security, and observability?
easy- ✓ A.Linkerd
- B.Consul
- C.Envoy
- D.Istio
Why A: Linkerd is a graduated CNCF project that provides a service mesh with features like traffic management, security (mTLS), and observability. Istio is also a service mesh but is incubating, not graduated. Envoy is a graduated proxy but not a full service mesh. Consul is not a CNCF project.
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Last reviewed: Jun 30, 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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