# Which Argo CD component continuously monitors the live cluster state and triggers synchronization and hook events?

Argo CD, Medium (Advanced), Architecture. https://k8wiz.com/uquiz/which-argo-cd-component-continuously-monitors-the-live-cluster-state-and-triggers-synchronization-and-hook-events

- A. API Server
- B. Repository Server
- C. Application Controller
- D. Argo CD CLI

**Answer:** Application Controller

**Explanation:** The Application Controller continuously monitors each application’s live state and desired state, and it triggers sync operations and resource hooks when they differ.