Study Confluent CCAAK Cluster Durability: key concepts, common traps, and exam decision cues.
This chapter is the control plane for the rest of CCAAK. If you do not understand how brokers, partitions, leaders, followers, and ISR interact, later config, security, and troubleshooting questions become guesswork.
Leader: The replica currently handling writes and serving reads for a partition.
Follower: A replica copying from the leader to stay in sync.
Confluent’s current public CCAAK description says administrators must configure, deploy, monitor, and support Kafka clusters. This chapter covers the first half of that promise: understanding how the cluster is structured and what makes a write durable.
| Lesson | Focus |
|---|---|
| 1.1 Brokers, Controllers & Replication | Understand cluster roles, partition leadership, follower behavior, and what healthy replication actually means. |
| 1.2 Acks, ISR & Write Safety | Learn how producer acknowledgement settings and ISR rules create or weaken durability. |
| If the question is really about… | Go first to… |
|---|---|
| who coordinates metadata and leadership changes | 1.1 Brokers, Controllers & Replication |
| safe writes and data-loss risk | 1.2 Acks, ISR & Write Safety |