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Practice Exams | Confluent Certified Apache Kafka Developer (Udemy.com)

Real World Exam Simulator with 4 Complete Practice Tests, Answer Explanations, References and Instructor Support

Created by: Manuel Müller

Last updated January 2026

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What you will learn

  • Practice for the Apache Kafka exam with 4 full practice exams of 60 questions each
  • Consolidate and validate your learning in the world of Apache Kafka
  • Exploring the architecture of Apache Kafka with detailed answer explanations
  • Learn everything about Kafka Connect, Kafka Streams and ksqlDB

How it compares

Against the other 848 rated Udemy courses in IT Certifications on CourseDuck:

  • Rating4.2 out of 5higher than 10% of them
  • Reviews304#504 of 849 by number of reviews
  • Last updatedJanuary 2026earlier than 51% of them

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Course Description

Welcome to the brand new practice exams to give you the winning edge for your Confluent Certified Developer for Apache Kafka certification.

The tone and tenor of the questions mimic the real exam. Along with the detailed description provided within the explanations, we have also extensively referenced Kafka documentation to get you up to speed on all domain areas being tested for the real exam.


A lot of effort has gone into making this course and we hope the Quality speaks for itself. Think of this course as the final pit-stop so that you can cross the winning line with absolute confidence and get Kafka Certified!


More questions are coming soon...


UPDATE END OF 2024: New Questions and a completely new practice exam are live!


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SAMPLE QUESTION:

What happens for a consumer application when closing one of the consumers cleanly?

(Choose one)

  1. The Kafka broker will notify the group coordinator that one consumer is leaving, and the group coordinator will trigger a rebalance immediately.

  2. The consumer application will consume messages with one consumer less.

  3. The consumer will notify the group coordinator that it is leaving, and the group coordinator will trigger a rebalance immediately.

  4. The consumer application breaks with the exception NOT_ENOUGH_CONSUMERS.

What's your guess? Scroll below for the answer








Correct: 3.

The way consumers maintain membership in a consumer group and ownership of the partitions assigned to them is by sending heartbeats to a Kafka broker designated as the group coordinator (this broker can be different for different consumer groups). As long as the consumer is sending heartbeats at regular intervals, it is assumed to be alive, well, and processing messages from its partitions. Heartbeats are sent when the consumer polls (i. e., retrieves records) and when it commits records it has consumed.

When closing a consumer cleanly, the consumer will notify the group coordinator that it is leaving, and the group coordinator will trigger a rebalance immediately, reducing the gap in processing.



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  • The questions are as per the Confluent exam syllabus of the official documentation

  • Retake Endlessly - You can retake the exams as many times as you want

  • 100% Exam Coverage - Tests are updated regularly to keep them up to date with the current syllabus

  • Detailed Explanations - You get detailed explanations for all the answers with reference links and official documentation

  • Mimic Real Exam - 60 multiple-choice questions, duration is 90 minutes and passing grade is around 70%

  • Mobile-Compatible - All practice tests are compatible with the Udemy App

  • 30-Day Money-Back Guarantee - Get your money back if you're not satisfied


We hope that by now you're convinced! And there are a lot more questions inside the course.

Happy learning and best of luck for your Confluent Certified Developer for Apache Kafka exam!

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Instructor Details

Manuel Müller

Experience as Developer

As a self-taught developer and software tester I had the chance to broaden my horizon by studying engineering and mathematics where I hold a Master's degree. That enabled me to work in a major strategy consultancy for a lot of different customers. The time i spent in this sector greatly improved my overall experience and skills and i got the possibility to certificate myself in many different areas all about IT consultancy and app, web and cloud development.

With this experience my goal is to enable all my students the possibility to achieve the same skill set with as less time as possible. All the practice exams are well structured and with many high quality explanations to give you the winning edge for your certifications.

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Reviews

4.2

304 ratings on Udemy

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By Christopher Schlenker on 4/21/2026

The practice exams here are genuinely valuable as review for the Certified Developer Exam. However, I'm leaving 4 stars because there are a lot of ksqlDB and Zookeeper questions that need to be replaced, making the exams out of date.

By David Schuld on 3/17/2026

I am very disappointed by this course. The syllabus is completely outdated and does not properly prepare for the exam. In detail: A large amount of questions contains either kSQL or Zookeeper, which are both out of scope. Zookeeper has been deprecated for years! It is replaced by KRaft which does not appear in this course at all. Also, some of the links to "further study material" are either outdated or link to content that is unusable for the actual question.

By changamire Dombo on 9/23/2025

PASSED THE CCDAK EXAM TODAY WITH 75% .The study questions and materials I found here were exactly what I needed. They were instrumental in helping me revise effectively and guided my further reading, ensuring I was well-prepared. Thanks a lot for the excellent resource

By J Sravan Sainath Reddy on 4/11/2025

KSQL DB questions are out of syllabus . It is mentioned in Confluent Page. Please remove the questions related to KSQLDB . Exam will be kind of tough if we don't have any experience in Kafka and attempting this exam with our own knowledge.

By Siim Sindonen on 2/11/2025

I passed the certification exam with a 90% score. The questions were similar, in my experience. However, you wouldn't pass if you only do the tests here. I appreciated the detailed explanations and references in the answers. You should also study those references and, if there isn’t one provided, search for it yourself.

By Alexander Taylor on 10/4/2024

It is difficult for me to assess the accuracy of the questions, but I can definitely say that this course helped me prepare, the questions on the certification were similar, but seemed more difficult to me, some were simple. I can definitely say thank you to the creators of the course for these questions!

By ZOBO Herve Yvon Francklin on 7/12/2024

I am writing to express my sincere gratitude for your outstanding Udemy course, #Practice Exams | Confluent Certified Apache Kafka Developer Your clear explanations, practical strategies, and comprehensive test practice materials were instrumental in preparing me for #Confluent Certified Apache Kafka Developer. The well-organized content and realistic practice tests significantly improved my understanding and confidence in tackling the exam. The tips and techniques you provided were particularly valuable, making complex concepts easier to grasp and apply under exam conditions. I highly recommend this #practice test to anyone preparing for Confluent Certified Apache Kafka Developer. It’s an exceptional resource on Udemy, thanks to your dedication and expertise. Thank you once again for providing such a valuable learning experience. I've got my certification!

By Daniel Sobrado on 6/18/2024

I used this as my main resource to prepare the exam, I passed. I also checked a few videos and documents, but most of my time was on the tests, I think the tests focus a bit too much on memorizing the names, fields, properties etc.. and the exam doesn't require that much memorization is a bit more on the understanding side. I did also put a large amount of notes that were very helpul for quick reviews on my github.

By Tikhon Prosnyakov on 1/27/2024

After passing the CCDAK, I can say that this collection provides a very good sense of what the questions will be like and the structure of the exam -it was helpful during my preparation. Coupled with reading 'Apache Kafka: The Definitive Guide', watching all the free Confluent 101 courses, and reading the documentation along with practicing is a recipe for success.

By VeAnu on 9/22/2022

I think both the answers are correct for this question, do you agree? Why can it be very challenging to add partitions later, if you are sending messages to partitions based on keys? Correction answers: After adding partitions later, it cannot be guaranteed that old messages will be on the same parition as new messages with the same key - I agree with this answer. After adding partitions later, it cannot be guaranteed that new messages with the same key will go to the same partition. - This is also correct right?

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Overall Score : 84 / 100