Câu 12: CCAAK: Confluent Certified Administrator for Apache Kafka

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.)

1. A. Kafka uses ZooKeeper's ephemeral node feature to elect a controller. — đáp án hiện tại
2. B. The Controller is responsible for electing Leaders among the partitions and replicas. — đáp án hiện tại
3. C. The Controller uses the epoch number to prevent a split brain scenario. — đáp án hiện tại
4. D. The broker id is used as the epoch number to prevent a split brain scenario.
5. E. The number of Controllers should always be equal to the number of brokers alive in the cluster.
6. F. The Controller is responsible for reassigning partitions to the consumers in a Consumer Group.