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  1. Home
  2. Confluent Certification
  3. CCDAK Exam
  4. Confluent.CCDAK.v2025-10-15.q103 Dumps
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Question 76

Your producer is producing at a very high rate and the batches are completely full each time. How can you improve the producer throughput? (select two)

Correct Answer: A,C
Increase linger.ms
Explanation:
batch.size controls how many bytes of data to collect before sending messages to the Kafka broker. Set this as high as possible, without exceeding available memory. Enabling compression can also help make more compact batches and increase the throughput of your producer. Linger.ms will have no effect as the batches are already full
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Question 77

What is a consequence of increasing the number of partitions in an existing Kafka topic?

Correct Answer: C
Increasing partitions increasesparallelism, but also means:
* Consumers in a group may have to handlemore partitions, especially if the number of consumers is lower than the number of partitions.
* This can result inincreased lag, especially under high load.
FromKafka Topic Management Docs:
"Increasing the number of partitions increases consumer work, and if consumers can't keep up, lag can accumulate."
* A is false:existing data is not redistributed.
* B is false:records with the same key always map to the same partitionbased on hash.
* D is not directly impacted by the partition count.
Reference:Kafka Topic Management > Adding Partitions
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Question 78

We would like to be in an at-most once consuming scenario. Which offset commit strategy would you recommend?

Correct Answer: D
Here, we must commit the offsets right after receiving a batch from a call to .poll()
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Question 79

What's is true about Kafka brokers and clients from version 0.10.2 onwards?

Correct Answer: C
Kafka's new bidirectional client compatibility introduced in 0.10.2 allows this. Read more herehttps://www.
confluent.io/blog/upgrading-apache-kafka-clients-just-got-easier/
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Question 80

In stream processing applications, handling out-of-order data can be a challenge which could affect the implemented business logic.
Which type of Join handles out-of-order records?

Correct Answer: B
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