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Confluent CCDAK Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Installing and Configuring Kafka | 5-10% | - Topic Creation and Configuration - Partition Assignment Strategies - ZooKeeper vs KRaft Mode - Broker Configuration Parameters |
| Developing with Kafka Producers | 15-20% | - Idempotent Producers - Producer Interceptors - Error Handling and Retry Logic - Producer Configuration and Tuning - Exactly-Once Semantics - Serialization (JSON, Avro, Protobuf) - Partitioning Strategies |
| Monitoring and Operations | 5-10% | - Kafka Metrics and Monitoring - Cross-region Replication - Consumer Lag and Health Checks - Disaster Recovery - Log Compaction |
| Kafka Streams | 20-25% | - Windowed Operations (Tumbling, Hopping, Session) - Streams Architecture and Topology - Interactive Queries - Exactly-Once Processing - Transformation Operations (map, filter, join, aggregate) - State Stores and Processors - Testing Kafka Streams Applications |
| Kafka Fundamentals | 10-15% | - Producer and Consumer Basics - Log Segments and Retention - Brokers and Clusters - Replication Factor and ISR - Topics, Partitions, and Offsets |
| Kafka Connect | 10-15% | - Connect Architecture (Workers, Connectors, Tasks) - Single Message Transformations (SMT) - Connector Configuration - Offset Management in Connect - Converters and Transforms - Source and Sink Connectors |
| Developing with Kafka Consumers | 15-20% | - Deserialization - Multi-threaded Consumers - Consumer Groups and Rebalancing - Commit Strategies (Auto, Manual, Cooperative) - Offset Management - Consumer Configuration and Tuning - Consumer Interceptors |
| Security | 5-10% | - Encryption in Transit - Securing Schema Registry - Authentication (SASL, SSL/TLS) - Authorization (ACLs) |
| Schema Management | 5-10% | - Schema Registry Architecture - Schema Evolution and Compatibility - Avro Schemas - Protobuf and JSON Schemas - Schema Registration and Retrieval |
Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions:
1. (You are configuring a source connector that writes records to an Orders topic.
You need to send some of the records to a different topic.
Which Single Message Transform (SMT) is best suited for this requirement?)
A) InsertField
B) TombstoneHandler
C) RegexRouter
D) HeaderFrom
2. Match the testing tool with the type of test it is typically used to perform.
3. You have a Kafka consumer in production actively reading from a critical topic.
You need to update the offset of your consumer to start reading from the beginning of the topic.
Which action should you take?
A) Start a new consumer application with the same consumer group id.
B) Update the consumer group's offset to the earliest position using the kafka-consumer-groups CLI tool.
C) Update the consumer configuration by setting auto.offset.reset=earliest.
D) Temporarily configure the topic's retention.ms parameter to 0 to empty the topic.
4. You are working on a Kafka cluster with three nodes. You create a topic named orders with:
replication.factor = 3
min.insync.replicas = 2
acks = allWhat exception will be generated if two brokers are down due to network delay?
A) NotEnoughReplicasException
B) NotLeaderForPartitionException
C) NotCoordinatorException
D) NetworkException
5. You need to configure a sink connector to write records that fail into a dead letter queue topic. Requirements:
Topic name: DLQ-Topic
Headers containing error context must be added to the messagesWhich three configuration parameters are necessary?(Select three.)
A) errors.log.enable=true
B) errors.deadletterqueue.context.headers.enable=true
C) errors.deadletterqueue.topic.name=DLQ-Topic
D) errors.tolerance=all
E) errors.tolerance=none
F) errors.log.include.messages=true
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: Only visible for members | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: B,C,D |
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