If a Kafka producer sends messages with different keys to a topic with 3 partitions, what can be said about the order of messages across the entire topic?

medium📝 Predict Output Q5 of 15

Kafka - Topics and Partitions

AMessages with different keys are merged in order automatically.

BOrder is guaranteed across all partitions.

COrder is guaranteed only within each partition, not across partitions.

DMessages are delivered in reverse order across partitions.

Step-by-Step Solution

Solution:

Step 1: Understand partition ordering scope
Kafka guarantees order only within each partition, not across partitions.
Step 2: Different keys go to different partitions
Messages with different keys may be assigned to different partitions, so global order is not guaranteed.
Final Answer:
Order is guaranteed only within each partition, not across partitions. -> Option C
Quick Check:
Order guarantee scope = A [OK]

Quick Trick: Order guaranteed per partition, not globally [OK]

Common Mistakes:

Assuming global order across partitions
Thinking Kafka merges messages automatically
Believing reverse order delivery

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More Kafka Quizzes

If a Kafka producer sends messages with different keys to a topic with 3 partitions, what can be said about the order of messages across the entire topic?

Step 1: Understand partition ordering scope

Step 2: Different keys go to different partitions

Final Answer:

Quick Check:

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