Apache Kafka Practice Exam 2025 – The Complete All-in-One Guide for Exam Success!

Java is the correct choice because it is the primary language for developing applications that interact with Apache Kafka. The Apache Kafka project is written in Java, and as such, a robust client library is provided that allows developers to produce and consume messages efficiently within Java applications. This native integration offers the most comprehensive support for Kafka's features such as producers, consumers, and streams.

While there are client libraries available for other programming languages, Java's library is the most prominent due to the inherent design of Kafka itself. Other languages, such as Ruby, do have Kafka client libraries, but they often rely on community contributions and may not be as feature-complete as the Java library. HTML and SQL are not programming languages that can natively interact with Kafka. HTML is a markup language used for structuring web content, and SQL is a domain-specific language for managing databases, neither of which have built-in capabilities to communicate with Kafka.