KCNA Cloud Native Application Delivery Practice Question
A team uses ArgoCD with a Git repository that contains Helm charts. They want ArgoCD to automatically sync when a new image tag is pushed to the container registry. Which approach should they use?
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
✓
Use ArgoCD Image Updater
ArgoCD Image Updater is the official tool to automatically update image tags in Kubernetes manifests (including Helm values) and commit changes to Git, triggering ArgoCD to sync.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use Flux Image Automation Controller
Why it's wrong here
This is a Flux component, not part of ArgoCD. It would require switching to Flux.
- ✗
Configure a webhook from the registry to ArgoCD API server
Why it's wrong here
Webhooks can trigger sync, but they do not update the image tag in Git.
- ✗
Manually update the Helm values and commit
Why it's wrong here
While possible, it is not automated.
- ✓
Use ArgoCD Image Updater
Why this is correct
ArgoCD Image Updater monitors registries and updates the desired state in Git automatically.
Go deeper
Related to this question
Learn chapter
Kubernetes Overview and Core Components
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
Helm Charts
Helm Charts are packages of pre-configured Kubernetes resources that let you install, upgrade, and manage complex applications on a Kubernetes cluster with a single command.
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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.