KCNA Cloud Native Architecture Practice Question
Which GitOps tools use a pull-based approach to synchronize the desired state in a Git repository with the actual state in a Kubernetes cluster? (Select all that apply.)
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
✓
Flux
Both Flux and ArgoCD are pull-based GitOps tools. Flux pioneered the pull-based pattern, while ArgoCD is also a popular implementation. Therefore, both A and D are correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Flux
Why this is correct
Flux runs an in-cluster controller that continuously pulls the Git repository, reconciles the desired manifests against live cluster state and applies drift corrections. This pull-based reconciliation satisfies the requirement for synchronising Git-declared state with the Kubernetes cluster.
- ✗
Terraform
Why it's wrong here
Terraform applies configuration in a push model, running from a pipeline or workstation against the target API, so no in-cluster agent continuously reconciles drift. It is tempting because it manages Kubernetes resources declaratively from Git, but that fits provisioning workflows, not continuous pull-based reconciliation.
- ✗
Helm
Why it's wrong here
Helm renders and installs manifests at deploy time; it holds no controller watching the cluster to reconcile drift back toward Git. It is tempting because charts are stored in Git and drive desired state, but that suits packaging and release templating, not continuous pull-based synchronisation.
- ✓
ArgoCD
Why this is correct
ArgoCD deploys an in-cluster controller that polls the Git repository, compares declared manifests with live cluster resources and syncs any drift. This pull-based reconciliation satisfies the requirement for synchronising Git-declared state with the Kubernetes cluster.
Go deeper
Related to this question
Learn chapter
Cluster Architecture and Lifecycle Management
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
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.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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