Confluent Certified Developer for Apache Kafka Certification Examination: CCDAK Exam
"Confluent Certified Developer for Apache Kafka Certification Examination", also known as CCDAK exam, is a Confluent Certification. With the complete collection of questions and answers, Pass4sureCert has assembled to take you through 92 Q&As to your CCDAK Exam preparation. In the CCDAK exam resources, you will cover every field and category in Confluent Certified Developer Certification helping to ready you for your successful Confluent Certification.
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Confluent CCDAK Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Application Testing | 8% | - Integration testing and test clusters - Mocking and test utilities - Unit testing producers and consumers |
| Topic 2: Application Observability | 13% | - Logging and monitoring metrics - Tracing and performance tuning - Error diagnosis and troubleshooting |
| Topic 3: Apache Kafka Fundamentals | 23% | - Configuration basics and cluster setup - Kafka architecture and data flow - Delivery semantics: at-most-once, at-least-once, exactly-once - Core concepts: brokers, topics, partitions, replicas, offsets |
| Topic 4: Apache Kafka Streams | 12% | - Streams API concepts: topology, processors, state stores - Stream processing operations: map, filter, join, aggregation - Error handling and state management - Windowing and time semantics |
| Topic 5: Kafka Connect | 15% | - Source and sink connectors configuration - Data transformation and integration patterns - Connect architecture: workers, connectors, tasks, converters |
| Topic 6: Apache Kafka Application Development | 28% | - Consumer API: configuration, offset management, consumer groups, rebalancing - Schema management: Confluent Schema Registry, compatibility rules, evolution - Transactional messaging and idempotence - Producer API: configuration, serialization, partitioning, error handling |
Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions:
1. (You want to enrich the content of a topic by joining it with key records from a second topic.
The two topics have a different number of partitions.
Which two solutions can you use?
Select two.)
A) Repartition one topic to a new topic with the same number of partitions as the other topic (co- partitioning constraint) and use a KStream-KTable join.
B) Create as many Kafka Streams application instances as the maximum number of partitions of the two topics and use a KStream-KTable join.
C) Use a GlobalKTable for one of the topics where data does not change frequently and use a KStream- GlobalKTable join.
D) Use a KStream-KTable join; Kafka Streams will automatically repartition the topics to satisfy the co- partitioning constraint.
2. Which two statements are correct when assigning partitions to the consumers in a consumer group using the assign() API?
(Select two.)
A) All topics must have the same number of partitions to use assign() API.
B) It is mandatory to subscribe to a topic before calling assign() to assign partitions.
C) The consumer group will not be rebalanced if a consumer leaves the group.
D) The consumer chooses which partition to read without any assignment from brokers.
3. You have a topic with four partitions. The application reads from it using two consumers in a single consumer group.
Processing is CPU-bound, and lag is increasing.
What should you do?
A) Increase the max.poll.records property of consumers.
B) Add more consumers to increase the level of parallelism of the processing.
C) Add more partitions to the topic to increase the level of parallelism of the processing.
D) Decrease the max.poll.records property of consumers.
4. 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=SASL_SSLsasl.jaas.config=org.apache.kafka.common.security.plain.
PlainLoginModule required username='myUser' password='myPassword';
B) security.protocol=SSLsasl.jaas.config=org.apache.kafka.common.security.plain.PlainLoginModule 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=PLAINTEXTsasl.jaas.config=org.apache.kafka.common.security.ssl.
TlsLoginModule required username='myUser' password='myPassword';
5. Match the testing tool with the type of test it is typically used to perform.
Solutions:
| Question # 1 Answer: A,C | Question # 2 Answer: C,D | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: Only visible for members |
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