KCNA Cloud Native Architecture Practice Question
Which CNCF project is classified as a 'graduated' project?
⚠ Common exam trap
KCNA often tests the distinction between CNCF maturity levels — candidates confuse incubating projects like Knative and Backstage with graduated ones, or assume any popular project is graduated.
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
✓
Linkerd
Linkerd is a CNCF graduated project, having reached that maturity level in July 2021. It is a service mesh that provides observability, security, and reliability for Kubernetes workloads. Graduated status means the project has demonstrated production adoption, a healthy contributor base, and a stable governance model.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Linkerd
Why this is correct
Linkerd reached CNCF graduated status, the highest maturity tier, reflecting production adoption, security audits and a stable governance process. Other service meshes remain at incubating or sandbox level, so graduation is the axis distinguishing it here.
- ✗
K3s
Why it's wrong here
K3s is a CNCF sandbox project, a lightweight Kubernetes distribution, not graduated. It is tempting because it is widely deployed and Kubernetes itself is graduated, but distribution popularity does not confer maturity status; sandbox suits early-stage projects seeking adoption and feedback.
- ✗
Knative
Why it's wrong here
Knative is a CNCF incubator project covering serverless and eventing, not graduated. It is tempting because it is prominent and widely used, but prominence does not equal graduation; incubator is the stage for projects with growing adoption still maturing toward the graduated criteria.
- ✗
Backstage
Why it's wrong here
Backstage sits in the CNCF incubator, having progressed from sandbox, not graduated. It is tempting because it is a well-known platform engineering portal, yet incubator status reflects growing adoption and stability; graduation would apply once it meets the higher criteria.
Go deeper
Related to this question
Learn chapter
Observability: Monitoring, Logging, and Tracing
Key term
ReplicaSet and Replication
A ReplicaSet ensures a specified number of identical pod instances are running at all times in Kubernetes, using replication to maintain availability and stability.
Key term
Service Mesh
A service mesh is a dedicated infrastructure layer that manages communication between microservices, handling tasks like service discovery, load balancing, encryption, and observability without requiring changes to application code.
About these practice questions
Courseiva writes every KCNA question from scratch — 930 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
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.