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CCDAK Exam Questions & Answers

Certified Developer for Apache Kafka  •  Confluent

150 Questions 90 min Updated Sep 2026 99% Pass Rate
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Sample CCDAK Questions

Practice with real exam-style questions, each with the verified correct answer and explanation.

Q1 MultipleChoice

Two consumers share the same group.id (consumer group id). Each consumer will

Correct Answer: B
Explanation:

Each consumer is assigned a different partition of the topic to consume.

Q2 MultipleChoice

A topic has three replicas and you set min.insync.replicas to 2. If two out of three replicas are not available, what happens when a consume request is sent to broker?

Correct Answer: A
Explanation:

With this configuration, a single in-sync replica is still readable, but not writeable if the producer using acks=all

Q3 MultipleChoice

We have a store selling shoes. What dataset is a great candidate to be modeled as a KTable in Kafka Streams?

Correct Answer: A, C
Explanation:

Aggregations of stream are stored in table, whereas Streams must be modeled as a KStream to avoid data explosion

Q4 MultipleChoice

What are the requirements for a Kafka broker to connect to a Zookeeper ensemble? (select two)

Correct Answer: B, D
Explanation:

Each broker must have a unique broker id and connect to the same zk ensemble and root zNode

Q5 MultipleChoice

Your manager would like to have topic availability over consistency. Which setting do you need to change in order to enable that?

Correct Answer: B
Explanation:

unclean.leader.election.enable=true allows non ISR replicas to become leader, ensuring availability but losing consistency as data loss will occur

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Frequently Asked Questions

The CCDAK (Certified Developer for Apache Kafka) is a professional certification offered by Confluent that validates expertise in developing applications with Apache Kafka. It is ideal for software developers, architects, and engineers who work with event streaming platforms and want to demonstrate their Kafka proficiency to employers.

The exam covers core Kafka concepts including producers, consumers, topics, partitions, replication, and broker configuration. It also tests knowledge of schema registry, Kafka Streams API, administration tasks, security implementations, and troubleshooting common issues in Kafka deployments.

The CCDAK exam is 120 minutes long and consists of approximately 60 multiple-choice questions. Candidates need to achieve a passing score of 70% or higher to obtain the certification.

While there are no formal prerequisites, Confluent recommends having at least 6-12 months of hands-on experience with Apache Kafka and completing their Developer courses. Familiarity with Java programming and event-driven architectures is also beneficial for exam success.

The exam typically costs around $150 USD, though pricing may vary by region and promotional offers. The certification is valid for three years from the date of passing, after which you may need to recertify to maintain the credential.
Exam Details
  • Exam CodeCCDAK
  • VendorConfluent
  • Total Questions150
  • Duration90 min
  • LanguageEnglish
  • Last UpdatedSep 4, 2026
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