What components and subdivisions exist within a Kafka Topic?

In Kafka, a Topic is a logical entity for organizing messages. Inside a Topic, there are several key components:

• Partitions: A Topic is divided into multiple partitions. Each partition is an ordered, immutable log of messages to which new entries are added.
• Replicas: Each partition can have multiple replicas to ensure fault tolerance. One replica is the leader, and the others are followers.
• Leader and Followers: The leader of a partition handles all write and read operations, while followers synchronize data with the leader.

Thus, a Topic is a collection of partitions, each having replicas distributed across brokers for scalability and reliability.