KCNA GitOps and Continuous Delivery 2

Question 1

Flux CD synchronizes Kubernetes clusters using which model?

Accepted Answer

Pull-based, with controllers running inside the cluster watching Git

Answer

Flux CD uses a pull-based model where controllers (source-controller, kustomize-controller, etc.) run inside the cluster and continuously watch Git repositories for changes to apply.

Question 2

What is the 'app of apps' pattern in ArgoCD?

Accepted Answer

A pattern where one ArgoCD Application manages other ArgoCD Application resources

Answer

The 'app of apps' pattern uses a root ArgoCD Application pointing to a Git directory that contains manifests for additional ArgoCD Applications, enabling hierarchical management of many applications.

Question 3

What role does Kustomize play in a GitOps workflow?

Accepted Answer

It allows customization of Kubernetes YAML manifests through overlays without modifying original base files

Answer

Kustomize lets users apply environment-specific patches and overlays on top of base Kubernetes manifests without editing the originals, enabling DRY, environment-aware GitOps configurations.

Question 4

In a GitOps workflow, what event typically triggers a deployment to production?

Accepted Answer

A merge into the target branch (e.g., main) in the Git repository

Answer

In GitOps, merging a pull request into the target branch signals 'this change is approved,' causing the GitOps operator to detect the new desired state and synchronize the cluster.

Question 5

How does ArgoCD represent the synchronization status of a managed application?

Accepted Answer

It displays a Synced or OutOfSync status and supports both auto-sync and manual sync modes

Answer

ArgoCD displays each application's health and sync status (Synced/OutOfSync) and can be configured for automatic synchronization or to require manual approval before applying changes.

(KCNA) Kubernetes and Cloud Native Associate Practice Test

(KCNA) Kubernetes and Cloud Native Associate Practice Test

KCNA GitOps and Continuous Delivery 2