Kubernetes and Cloud Native Associate (KCNA) — Question 92

Which key-value store is used to persist Kubernetes cluster data?

Answer options

• A. etcd
• B. ZooKeeper
• C. ControlPlaneStore
• D. Redis

Correct answer: A

Explanation

The correct answer is A, etcd, which is specifically designed for storing the state of a Kubernetes cluster. ZooKeeper, ControlPlaneStore, and Redis are not used for this purpose; while ZooKeeper is another distributed key-value store, it does not serve Kubernetes directly, and Redis is primarily an in-memory data structure store.