You create a topic named loT-Data with 10 partitions and replication factor of three.

A: Kafka batches store compression metadata in their headers, indicating how the batch was compressed.

B: Compression is controlled via the producer config compression.type, which defaults to none. Producers explicitly set Gzip or other formats.

From Kafka Producer Docs:

“Compression is done by the producer, and the type is stored in the message batch metadata. The broker does not recompress.”

C is false: messages are serialized before compression.

D is false: messages without keys are distributed across multiple partitions.