Exam Name: Confluent Certified Developer for Apache Kafka Certification Examination
Certification Provider: Confluent
Corresponding Certification: Confluent Certified Developer
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Updated: Sep 23, 2026
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- Total Questions: 92
- Updated on: Sep 23, 2026
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- Total Questions: 92
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- Total Questions: 92
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Confluent CCDAK Exam Overview:
| Certification Vendor: | Confluent |
|---|---|
| Exam Name: | Confluent Certified Developer for Apache Kafka Certification Examination |
| Exam Number: | CCDAK |
| Exam Format: | Matching, List order, Multiple-choice |
| Available Languages: | English |
| Exam Price: | $150 USD |
| Exam Duration: | 90 minutes |
| Related Certifications: | Confluent Cloud Certified Operator (CCAC) Confluent Certified Administrator for Apache Kafka (CCAAK) |
| Real Exam Qty: | 60 |
| Passing Score: | Pass / Fail |
| Certificate Validity Period: | 2 years |
| Recommended Training: | Confluent Documentation Confluent Developer Training for Apache Kafka |
| Exam Registration: | Confluent Certification Portal |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Remote proctored online exam; requires webcam, microphone, Google Chrome browser |
| Pre Condition: | No mandatory prerequisites; recommended experience: 6+ months developing applications with Apache Kafka |
| Official Syllabus URL: | https://www.confluent.io/certification/ |
Confluent CCDAK Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Apache Kafka Streams | 12% | - Error handling and state management - Streams API concepts: topology, processors, state stores - Windowing and time semantics - Stream processing operations: map, filter, join, aggregation |
| Topic 2: Application Observability | 13% | - Tracing and performance tuning - Logging and monitoring metrics - Error diagnosis and troubleshooting |
| Topic 3: Application Testing | 8% | - Unit testing producers and consumers - Integration testing and test clusters - Mocking and test utilities |
| Topic 4: Apache Kafka Application Development | 28% | - Producer API: configuration, serialization, partitioning, error handling - Transactional messaging and idempotence - Consumer API: configuration, offset management, consumer groups, rebalancing - Schema management: Confluent Schema Registry, compatibility rules, evolution |
| Topic 5: Apache Kafka Fundamentals | 23% | - Kafka architecture and data flow - Core concepts: brokers, topics, partitions, replicas, offsets - Configuration basics and cluster setup - Delivery semantics: at-most-once, at-least-once, exactly-once |
| Topic 6: Kafka Connect | 15% | - Connect architecture: workers, connectors, tasks, converters - Data transformation and integration patterns - Source and sink connectors configuration |
CCDAK Exam FAQ: Try It First
Remote proctored online exam; requires webcam, microphone, Google Chrome browser Register for the Confluent Certified Developer for Apache Kafka Certification Examination exam through these official channels:
After booking, NewPassLeader delivers your practice questions within 1 minute — preparation starts the same day.
NewPassLeader issues a full refund if you take the Confluent Certified Developer for Apache Kafka Certification Examination exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing arrives within 2 hours.
The Confluent Certified Developer for Apache Kafka Certification Examination exam requires Pass / Fail to pass, and registration costs $150 USD. A failed attempt means paying the same fee again — a readiness check with the NewPassLeader engines before booking is the cheaper option.
The official Confluent Certified Developer for Apache Kafka Certification Examination outline defines 6 domains. The leading three are Apache Kafka Fundamentals (23%), Apache Kafka Streams (12%), and Application Testing (8%). The full list is in the topics section above, and NewPassLeader's 92 practice questions cover each one.
The Confluent Certified Developer for Apache Kafka Certification Examination exam contains 60 to complete within 90 minutes. Timed simulation in the NewPassLeader Desktop Test Engine teaches that rhythm before exam day does.
No mandatory prerequisites; recommended experience: 6+ months developing applications with Apache Kafka Since requirements change over time, confirm the latest on the official Confluent exam page before scheduling.
Three versions of the same study materials: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows that simulates the real exam with two practice modes and works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 92 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
The CCDAK exam is a Confluent certification exam validating the Confluent Certified Developer for Apache Kafka Certification Examination syllabus shown above. It belongs to these credential paths: Confluent Certified Administrator for Apache Kafka (CCAAK), Confluent Cloud Certified Operator (CCAC). Earning it in 2026 demonstrates ability in a form employers recognize — and NewPassLeader prepares candidates with 92 practice questions in PDF, Desktop Test Engine, and Online Test Engine formats.
Confluent recommends these training resources for the Confluent Certified Developer for Apache Kafka Certification Examination exam:
Follow the training with steady self-testing — the 92 practice questions from NewPassLeader help you apply theory and fill any gaps the training leaves.
Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions:
Which two statements are correct when assigning partitions to the consumers in a consumer group using the assign() API?
(Select two.)
- A. The consumer group will not be rebalanced if a consumer leaves the group.
- B. All topics must have the same number of partitions to use assign() API.
- C. The consumer chooses which partition to read without any assignment from brokers.
- D. It is mandatory to subscribe to a topic before calling assign() to assign partitions.
Correct Answer: A,C 🗳️
Explanation: Only visible for NewPassLeader members. You can sign-up / login (it's free).
You need to set alerts on key broker metrics to trigger notifications when the cluster is unhealthy.
Which are three minimum broker metrics to monitor?
(Select three.)
- A. kafka.controller:type=KafkaController,name=LastCommittedRecordOffset
- B. kafka.controller:type=ControllerStats,name=UncleanLeaderElectionsPerSec
- C. kafka.controller:type=KafkaController,name=OfflinePartitionsCount
- D. kafka.controller:type=KafkaController,name=ActiveControllerCount
- E. kafka.controller:type=KafkaController,name=TopicsToDeleteCount
Correct Answer: B,C,D 🗳️
Explanation: Only visible for NewPassLeader members. You can sign-up / login (it's free).
(You are writing to a Kafka topic with producer configuration acks=all.
The producer receives acknowledgements from the broker but still creates duplicate messages due to network timeouts and retries.
You need to ensure that duplicate messages are not created.
Which producer configuration should you set?)
- A. retries=2147483647max.in.flight.requests.per.connection=1enable.idempotence=true
- B. enable.auto.commit=true
- C. retries=0max.in.flight.requests.per.connection=5enable.idempotence=true
- D. retries=2147483647max.in.flight.requests.per.connection=5enable.idempotence=false
Correct Answer: A 🗳️
Explanation: Only visible for NewPassLeader members. You can sign-up / login (it's free).
Which tool can you use to modify the replication factor of an existing topic?
- A. kafka-reassign-topics.sh
- B. kafka-topics.sh
- C. kafka-recreate-topic.sh
- D. kafka-reassign-partitions.sh
Correct Answer: D 🗳️
Explanation: Only visible for NewPassLeader members. You can sign-up / login (it's free).
(You are experiencing low throughput from a Java producer.
Kafka producer metrics show a low I/O thread ratio and low I/O thread wait ratio.
What is the most likely cause of the slow producer performance?)
- A. Compression is enabled.
- B. There is a bad data link layer (Layer 2) connection from the producer to the cluster.
- C. The producer code has an expensive callback function.
- D. The producer is sending large batches of messages.
Correct Answer: C 🗳️
Explanation: Only visible for NewPassLeader members. You can sign-up / login (it's free).
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