Kubernetes - Fundamentals
Which Kubernetes control plane component stores all cluster data persistently?
Which Kubernetes control plane component stores all cluster data persistently?
easy📝 Conceptual Q1 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the role of etcd
etcd is a distributed key-value store used by Kubernetes to store all cluster data persistently.Step 2: Differentiate from other components
Other components like kube-apiserver handle requests, scheduler assigns pods, and controller-manager manages controllers, but none store data persistently.Final Answer:
etcd -> Option CQuick Check:
Persistent data storage = etcd [OK]
Quick Trick: etcd is the cluster's database storing all data [OK]
Common Mistakes:
- Confusing kube-apiserver as data storage
- Thinking scheduler stores cluster state
- Assuming controller-manager holds persistent data
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