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Which acks mode in Kafka provides the fastest message sending but with the least safety?

easy📝 Conceptual Q11 of 15
Kafka - Producers
Which acks mode in Kafka provides the fastest message sending but with the least safety?
A<code>acks=0</code>
B<code>acks=1</code>
C<code>acks=all</code>
DNone of the above
Step-by-Step Solution
Solution:

  1. Step 1: Understand acks=0 behavior

    This mode means the producer does not wait for any acknowledgment from the broker, so it sends messages fastest but with no guarantee of delivery.

  2. Step 2: Compare with other modes

    acks=1 waits for leader confirmation, and acks=all waits for all replicas, both slower but safer.

  3. Final Answer:

    acks=0 -> Option A

  4. Quick Check:

    Fastest but least safe = acks=0 [OK]
Quick Trick: No wait for confirmation means fastest mode is acks=0 [OK]
Common Mistakes:
  • Confusing acks=0 with acks=1
  • Thinking acks=all is fastest
  • Assuming acks=0 waits for leader

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