You create a topic named stream-logs with:A replication factor of 3Four partitionsMessages that are plain...

If amessage key is not provided, Kafka’s default partitioner usesround-robin distributionacross available partitions.

FromKafka Producer Design:

“If no key is provided, the default partitioner distributes messages round-robin to available partitions.”

A is incorrect — not all go to partition 0.

C is invalid — Kafka doesn’t group messages into one segment without a key.

D is false — ordering isnot preservedacross partitions without a key.