What is the role of "etcd" consistency guarantees (via the Raft consensus algorithm) in ensuring Kubernetes cluster reliability?
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Incorrect.
The correct answer is B) etcd uses the Raft consensus algorithm to maintain a strongly consistent, replicated log across its members, ensuring that even if some etcd nodes fail, the cluster state remains consistent and a quorum can continue to serve reads/writes
Correct Answer
etcd uses the Raft consensus algorithm to maintain a strongly consistent, replicated log across its members, ensuring that even if some etcd nodes fail, the cluster state remains consistent and a quorum can continue to serve reads/writes
Raft ensures that a majority (quorum) of etcd members agree on every write before it is committed, providing strong consistency; this is why etcd clusters are typically deployed with an odd number of members (e.g. 3 or 5) to tolerate failures while maintaining quorum.