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Confluent CCDAK Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Installing and Configuring Kafka | 5-10% | - Topic Creation and Configuration - Partition Assignment Strategies - ZooKeeper vs KRaft Mode - Broker Configuration Parameters |
| Topic 2: Developing with Kafka Consumers | 15-20% | - Offset Management - Deserialization - Consumer Groups and Rebalancing - Commit Strategies (Auto, Manual, Cooperative) - Multi-threaded Consumers - Consumer Configuration and Tuning - Consumer Interceptors |
| Topic 3: Kafka Fundamentals | 10-15% | - Replication Factor and ISR - Brokers and Clusters - Topics, Partitions, and Offsets - Producer and Consumer Basics - Log Segments and Retention |
| Topic 4: Schema Management | 5-10% | - Avro Schemas - Schema Registry Architecture - Schema Registration and Retrieval - Schema Evolution and Compatibility - Protobuf and JSON Schemas |
| Topic 5: Kafka Streams | 20-25% | - State Stores and Processors - Windowed Operations (Tumbling, Hopping, Session) - Streams Architecture and Topology - Exactly-Once Processing - Interactive Queries - Testing Kafka Streams Applications - Transformation Operations (map, filter, join, aggregate) |
| Topic 6: Kafka Connect | 10-15% | - Connector Configuration - Connect Architecture (Workers, Connectors, Tasks) - Converters and Transforms - Offset Management in Connect - Source and Sink Connectors - Single Message Transformations (SMT) |
| Topic 7: Monitoring and Operations | 5-10% | - Log Compaction - Cross-region Replication - Kafka Metrics and Monitoring - Consumer Lag and Health Checks - Disaster Recovery |
| Topic 8: Developing with Kafka Producers | 15-20% | - Producer Interceptors - Idempotent Producers - Producer Configuration and Tuning - Exactly-Once Semantics - Serialization (JSON, Avro, Protobuf) - Partitioning Strategies - Error Handling and Retry Logic |
| Topic 9: Security | 5-10% | - Authentication (SASL, SSL/TLS) - Securing Schema Registry - Authorization (ACLs) - Encryption in Transit |
Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions:
1. You need to collect logs from a host and write them to a Kafka topic named 'logs-topic'. You decide to use Kafka Connect File Source connector for this task.
What is the preferred deployment mode for this connector?
A) Standalone mode
B) Parallel mode
C) SingleCluster mode
D) Distributed mode
2. Which statement describes the storage location for a sink connector's offsets?
A) The topic specified in the offsets.storage.topic configuration parameter
B) In a file specified by the offset.storage.file.filename configuration parameter
C) The __consumer_offsets topic, like any other consumer
D) In memory which is then periodically flushed to a RocksDB instance
3. You want to connect with username and password to a secured Kafka cluster that has SSL encryption.
Which properties must your client include?
A) security.protocol=SSLsasl.jaas.config=org.apache.kafka.common.security.plain.PlainLoginModule required username='myUser' password='myPassword';
B) security.protocol=PLAINTEXTsasl.jaas.config=org.apache.kafka.common.security.ssl.
TlsLoginModule required username='myUser' password='myPassword';
C) security.protocol=SASL_PLAINTEXTsasl.jaas.config=org.apache.kafka.common.security.plain.
PlainLoginModule required username='myUser' password='myPassword';
D) security.protocol=SASL_SSLsasl.jaas.config=org.apache.kafka.common.security.plain.
PlainLoginModule required username='myUser' password='myPassword';
4. (What are two stateless operations in the Kafka Streams API?
Select two.)
A) Reduce
B) GroupBy
C) Filter
D) Join
5. You are writing a producer application and need to ensure proper delivery. You configure the producer with acks=all.
Which two actions should you take to ensure proper error handling?
(Select two.)
A) Use a callback argument in producer.send() where you check delivery status.
B) Check that producer.send() returned a RecordMetadata object and is not null.
C) Check the value of ProducerRecord.status().
D) Surround the call of producer.send() with a try/catch block to catch KafkaException.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: C | Question # 3 Answer: D | Question # 4 Answer: B,C | Question # 5 Answer: A,D |




