Pass the CCDAK Certification
Four PDFs for the Confluent Certified Developer for Apache Kafka exam. You get a 166-page study guide, 658 practice questions sorted by topic, six mock exams and a set of cheatsheets.
- Study guide166 pages
- Practice658 questions
- Mock exams349 questions
- Cheatsheets6 sheets
You pay once and can download the PDFs right away. Updates are free for a year.
Pass the CCDAK: A Developer's Fast Track
The study guide has fifteen chapters on 166 pages. It starts with how Kafka stores data and works its way up to Kafka Streams, so you can read it front to back in a few weeks.
- 1 The Fundamentals
- 2 The Brokers, Topics and Storage
- 3 Producers and Partitioning
- 4 Consumers and Consumer Groups
- 5 Errors and Retryability
- 6 Schemas and Serialization
- 7 The Admin Client
- 8 Kafka Internals and Architecture
- 9 Reliable Delivery and Retries
- 10 Exactly Once
- 11 Kafka Connect
- 12 Security and Authentication
- 13 Administration
- 14 Monitoring
- 15 Kafka Streams
600+ Practice Questions
There are 658 questions, sorted by topic so they line up with the study guide. Most have one right answer, some have two or three, and a few ask you to put steps in order. Every answer comes with an explanation, and the blue cover has a square for each question.
What happens when a consumer group has more consumers than partitions?
- a)The consumer group fails to initialize
- b)Multiple consumers share the same partitions
- c)Partitions are distributed round-robin across all consumers
- d)Extra consumers remain idle until a partition becomes available
Show the answerHide the answer
d) Extra consumers remain idle until a partition becomes available
A consumer group can have at most one consumer per partition. If the group size exceeds the number of partitions, the extra consumers remain idle and do not receive any messages until a partition becomes available, for example if another consumer crashes or leaves the group.
300+ Exam Questions
Six mock exams with 349 questions between them, all with answers. Take one in a single sitting, 90 minutes with no notes, the way the real exam works. Then go back to the chapters where you lost points before you try the next one.
- Exam 1 60 questions
- Exam 2 60 questions
- Exam 3 60 questions
- Exam 4 60 questions
- Exam 5 60 questions
- Exam 6 49 questions
Cheatsheets
Six short sheets with the settings, defaults and API calls that are easiest to mix up, for the last week before the exam. Here's part of the first one:
| Setting | Value | Default or recommended |
|---|---|---|
| retention.ms | 7 daysDefault | Default |
| segment.bytes | 1 GBDefault | Default |
| cleanup.policy | deleteDefault | Default |
| replication.factor | 3Recommended | Recommended |
| min.insync.replicas | 2Recommended | Recommended |
| enable.idempotence | trueDefault | Default |
$49 for all four books
You pay once. There's no subscription, and the PDFs are yours to keep.
$49 USD, one-time
- Pass the CCDAK: A Developer's Fast Track · 166 pages, 15 chapters
- 600+ Practice Questions · 658, with explanations
- 300+ Exam Questions · six mock exams, 349 questions
- Cheatsheets · six sheets
Updates are free for a year.
You'll sign in first, so the download stays in your account. Polar handles the payment.
Planning the exam
Short guides to the exam itself. The facts come from Confluent's own pages, and each guide says when we checked them.
All the exam guides- CCDAK exam cost The CCDAK exam costs USD 150 per attempt. Here's what a retake costs, how long the certificate lasts and what preparing for it can cost.
- CCDAK exam topics CCDAK exam topics in Confluent's blueprint: Application Design 40%, Development 30%, Deployment, Testing and Monitoring 30%.
- CCDAK exam guide CCDAK exam guide: a 90-minute, remotely proctored exam in English with multiple-choice, matching and list-order questions.
- CCDAK practice exam CCDAK practice exam: six mock exams with 349 questions and answers, plus 658 practice questions grouped by chapter.
- CCDAK exam preparation CCDAK exam preparation in four weeks: three weeks through the fifteen chapters with practice questions, one week of mock exams.
- CCDAK vs CCAAK CCDAK vs CCAAK: Confluent's developer exam against its administrator exam. Who each is for, what they validate and what they cost.
Questions
It helps. Confluent's exam blueprint suggests 6 to 12 months of hands-on work with Kafka. If you have less than that, give the study guide more time and start on the practice questions early.
Plan on two to four weeks, about 40 to 60 hours in total. If you spread it out much longer, the first chapters start to fade before exam day.
They're written to the topics in Confluent's exam blueprint, and every one has an explanation. Confluent doesn't publish its exam questions, so nobody can honestly promise you'll see the same ones. Use them to find the topics you're still unsure about.
It takes 90 minutes, it's in English, and you take it online while a proctor watches through your webcam. The questions are multiple-choice, matching and list order. Confluent's certification page doesn't say how many questions there are or what the pass mark is.
Partitioning, producer acks and delivery guarantees. They're all part of Application Design, which counts for 40 percent in Confluent's 2020 blueprint, more than any other domain.
If you want more depth, read Kafka: The Definitive Guide (Confluent gives the e-book away) and try things out on a local cluster. The official documentation is the place to check a specific setting.
Get all four books for $49
You pay once, download the PDFs and can start on chapter 1 tonight.