How familiar are you with Kafka? Rate from 1 to 10.

I would rate my Kafka knowledge as 6 out of 10. I am familiar with the main concepts: brokers, topics, partitions, producers, and consumers. I understand how Kafka ensures high performance and reliability of message delivery, as well as supports scalability.

I have used Kafka for organizing message exchange between microservices, processing real-time data streams, and integrating various systems. I am familiar with configuring producers and consumers, as well as with schema management and error handling.

Example of using Kafka to send a message to a topic:

Producer<String, String> producer = new KafkaProducer<>(props);
producer.send(new ProducerRecord<>("topicName", "key", "message"));
producer.close();