How do you describe the details of a topic named 'my-first-topic'?

• A. bin/kafka-topics.sh --zookeeper localhost:2181 --topic my-first-topic --delete
• B. bin/kafka-topics.sh --zookeeper localhost:2181 --topic my-first-topic --describe
• C. bin/kafka-topics.sh --bootstrap-server localhost:9092 --topic my-first-topic --describe
• D. bin/kafka-topics.sh --zookeeper localhost:2181 --topic my-first-topic --list

Answer: (B)

Describing a topic’s details means querying its metadata to see how it’s built: how many partitions it has, the replication factor, and which brokers lead each partition along with the in-sync replicas. To fetch that information, you use the kafka-topics.sh tool with the describe action and specify the topic name. In this setup you connect to ZooKeeper, so you provide the connection with --zookeeper localhost:2181 and then include --topic my-first-topic --describe. The output will list each partition, its leader, replicas, and in-sync replicas, giving you a complete picture of how the topic is configured.