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You are managing a Kafka cluster with five brokers (broker id '0', '1','2','3','4') and three ZooKeepers. There are 100 topics, five partitions for each topic, and replication factor three on the cluster. Broker id '0' is currently the Controller, and this broker suddenly fails. Which statements are correct? (Choose three.)
Correct Answer: A,B,C
Kafka relies on ZooKeeper's ephemeral nodes to detect if a broker (controller) goes down and to elect a new controller. The controller manages partition leadership assignments and handles leader election when a broker fails. The epoch number ensures coordination and avoids outdated controllers acting on stale data.