Answer
It validates requests, stores configuration, exposes REST endpoints, and communicates with etcd.
Quick Answer
The API Server is the central hub for all cluster communication — every component (kubelet, scheduler, controllers) reads and writes state through it. It validates and persists objects to etcd, enforces authentication and authorization, runs admission controllers, and serves the Kubernetes REST API. Nothing happens in the cluster without going through it.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ