Zookeeper easy
In a ZooKeeper cluster, which node handles 'Write' requests?
- A Any node can handle writes independently.
- B The Observer nodes.
- C The Client.
- D The single Leader node. If a client connects to a Follower and sends a write, the Follower forwards it to the Leader.
Answer: D. The single Leader node. If a client connects to a Follower and sends a write, the Follower forwards it to the Leader.
To guarantee strict ordering (Consistency), all changes to the system state must be serialized through a single authority: The Leader.
One system design question a day, with spaced repetition so the ones you miss come back.
Get the appRelated questions
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