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ArgoCD Sync Strategies Quiz ​

This quiz tests your understanding of ArgoCD synchronization strategies and options.

  1. What is the difference between a "Sync" and a "Refresh" in ArgoCD?
    • A) They are the same operation
    • B) Refresh compares the current state to Git; Sync applies changes to make them match
    • C) Sync is manual, Refresh is automatic
    • D) Refresh deletes resources, Sync creates them
Show Answer

Answer: B) Refresh compares the current state to Git; Sync applies changes to make them match

Explanation: A Refresh operation fetches the latest manifests from Git and compares them to the live state, updating the Application status. A Sync operation actually applies changes to the cluster to bring the live state in line with the desired state in Git.

  1. What does enabling automated sync policy do?
    • A) Automatically deletes the application
    • B) Enables automatic synchronization when the desired state differs from live state
    • C) Enables automatic rollback
    • D) Automatically creates backups
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Answer: B) Enables automatic synchronization when the desired state differs from live state

Explanation: When syncPolicy.automated is enabled, Argo CD applies OutOfSync changes according to policy. Live-only drift needs selfHeal, deletion needs prune, and identical failed commits are not unconditionally retried forever.

  1. What is the purpose of the prune option in automated sync?
    • A) To clean up old Git branches
    • B) To automatically delete resources that are no longer defined in Git
    • C) To remove failed deployments
    • D) To delete the application itself
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Answer: B) To automatically delete resources that are no longer defined in Git

Explanation: When prune: true is set in automated sync, Argo CD deletes tracked resources belonging to this Application that disappear from the desired source, not every unmanaged resource in the cluster.

  1. What does selfHeal: true do in a sync policy?
    • A) Automatically fixes YAML syntax errors
    • B) Automatically syncs when live state deviates from desired state due to manual changes
    • C) Restarts unhealthy pods
    • D) Repairs corrupted Git repositories
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Answer: B) Automatically syncs when live state deviates from desired state due to manual changes

Explanation: With automated sync enabled, selfHeal reconciles compared live-only drift, subject to windows, authorization and ignore rules. It does not restore lost data or repair YAML errors.

  1. Which sync option would you use to replace resources instead of applying patches?
    • A) Force=true
    • B) Replace=true
    • C) Recreate=true
    • D) Update=true
Show Answer

Answer: B) Replace=true

Explanation: The Replace=true sync option tells ArgoCD to use kubectl replace instead of kubectl apply, which completely replaces the resource rather than patching it. replace/create does not automatically bypass immutable-field restrictions. Force=true with Replace=true can delete/recreate resources and is not a PVC migration shortcut.