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A schema registry is a centralized service that manages schemas for data exchanged between systems in a distributed architecture, and it is often used in conjunction with Apache Kafka. The primary purpose of a schema registry is to enforce a shared schema for the data that flows through a messaging system, ensuring consistency and compatibility between producers and consumers of data. Apache Kafka connectors are components that allow you to integrate Kafka with other systems, enabling the seamless transfer of data between Kafka and various data sources or sinks. There are two main types of Kafka connectors: source connectors and sink connectors.