CCDAK Exam Preparation Material | Confluent Certified Developer for Apache Kafka Certification Examination

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Prepare for the CCDAK Confluent Certified Developer for Apache Kafka Certification ination exam with CertQueen's independently developed study resources. Review important concepts, practice scenario-based questions, and use clear explanations to identify areas that require further study.

Question#1

To enhance compression, I can increase the chances of batching by using

A. acks=all
B. linger.ms=20
C. batch.size=65536
D. max.message.size=10MB

Explanation:
linger.ms forces the producer to wait before sending messages, hence increasing the chance of creating batches that can be heavily compressed.

Question#2

Where are KSQL-related data and metadata stored?

A. Kafka Topics
B. Zookeeper
C. PostgreSQL database
D. Schema Registry

Explanation:
metadata is stored in and built from the KSQL command topic. Each KSQL server has its own in-memory version of the metastore.

Question#3

You have a consumer group of 12 consumers and when a consumer gets killed by the process management system, rather abruptly, it does not trigger a graceful shutdown of your consumer. Therefore, it takes up to 10 seconds for a rebalance to happen. The business would like to have a 3 seconds rebalance time .
What should you do? (select two)

A. Increase session.timeout.ms
B. Decrease session.timeout.ms
C. Increase heartbeat.interval.ms
D. decrease max.poll.interval.ms
E. increase max.poll.interval.ms
F. Decrease heartbeat.interval.ms

Explanation:
session.timeout.ms must be decreased to 3 seconds to allow for a faster rebalance, and the heartbeat thread must be quicker, so we also need to decrease heartbeat.interval.ms

Question#4

To get acknowledgement of writes to only the leader partition, we need to use the config...

A. acks=1
B. acks=0
C. acks=all

Explanation:
Producers can set acks=1 to get acknowledgement from partition leader only.

Question#5

Which Kafka CLI should you use to consume from a topic?

A. kafka-console-consumer
B. kafka-topics
C. kafka-console
D. kafka-consumer-groups

Explanation:
Examplekafka-console-consumer --bootstrap-server 127.0.0.1:9092 --topic test --from-beginning

Exam Code: CCDAK
Q & A: 150 Q&As         Updated:  Oct 08,2026

 

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What This CCDAK Study Resource Helps You Do

Review Key Concepts

Review the technologies, products, processes, and practical skills covered by the current CCDAK exam objectives.

Practice Scenario-Based Questions

Work through independently developed questions designed to strengthen your understanding of technical scenarios and decision-making.

Identify Knowledge Gaps

Use your results and the provided explanations to find weaker areas and focus your study more effectively.

How to Use This CCDAK Preparation Material

Review the Exam Scope

Start by reviewing the topics covered by the CCDAK exam. Compare them with the official exam objectives to understand the required technologies, operational tasks, and practical skills, then identify the areas that deserve the most attention.

Practice Independently

Complete a focused set of practice questions for each topic. On your first attempt, avoid referring to notes, answers, or other study resources so that you can evaluate your current understanding more accurately.

Study the Explanations

Review the answers and explanations after completing each practice session. Understand why the correct option is appropriate for the given scenario and why the other options may be incorrect or less suitable.

Close Knowledge Gaps

Keep track of incorrect answers, unfamiliar concepts, and weaker knowledge areas. Review these topics using official documentation and practical experience, then answer the related questions again to reinforce your understanding and monitor your progress.

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