KCNA Cloud Native Application Delivery Practice Question
A team uses Flux to manage GitOps. Which Flux component is responsible for reconciling the cluster state with the desired state defined in a Git repository?
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
✓
Kustomize Controller
In Flux, the Kustomize Controller (option A) is responsible for reconciling the cluster state with the desired state defined in a Git repository. It applies Kubernetes manifests, including Kustomize overlays, to the cluster to ensure the actual state matches the desired state. The Source Controller (option B) fetches source artifacts from Git or other sources, but does not perform reconciliation. The Helm Controller (option C) manages Helm releases, and the Notification Controller (option D) handles event notifications. Therefore, the correct answer is the Kustomize Controller.
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Related to this question
Learn chapter
Kubernetes Overview and Core Components
Key term
GitOps
GitOps is a way to manage and automate cloud infrastructure and applications by using a Git repository as the single source of truth, where all changes are made through pull requests and automatically applied by a software agent.
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.
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Same concept, more angles
1 more way 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 THREE of the following are core components of Flux?
hard- ✓ A.Source controller
- B.Notification controller
- C.GitOps controller
- ✓ D.Kustomize controller
- ✓ E.Helm controller
Why A: Flux has a source-controller that manages artifact sources (e.g., Git repositories), a kustomize-controller that applies Kustomize overlays, and a helm-controller for Helm releases. The gitops-controller is not a specific Flux component (it's a generic term), and the notification-controller is not a core component (it's a separate controller for events).
JA
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.