Confluent CCDAK

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Confluent CCDAK Exam Syllabus Topics:

Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions:

1. Match the testing tool with the type of test it is typically used to perform.

2. You have a consumer group with default configuration settings reading messages from your Kafka cluster.
You need to optimize throughput so the consumer group processes more messages in the same amount of time.
Which change should you make?

A) Disable auto commit and have the consumers manually commit offsets.
B) Increase the number of bytes the consumers read with each fetch request.
C) Remove some consumers from the consumer group.
D) Decrease the session timeout of each consumer.

3. (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) Use a KStream-KTable join; Kafka Streams will automatically repartition the topics to satisfy the co- partitioning constraint.
B) 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.
C) Create as many Kafka Streams application instances as the maximum number of partitions of the two topics and use a KStream-KTable join.
D) Use a GlobalKTable for one of the topics where data does not change frequently and use a KStream- GlobalKTable join.

4. (You are developing a Kafka Streams application with a complex topology that has multiple sources, processors, sinks, and sub-topologies.
You are working in a development environment and do not have access to a real Kafka cluster or topics.
You need to perform unit testing on your Kafka Streams application.
Which should you use?)

A) TestProducer, TestConsumer
B) KafkaUnitTestDriver
C) TopologyTestDriver
D) MockProducer, MockConsumer

5. Match the topic configuration setting with the reason the setting affects topic durability.
(You are given settings like unclean.leader.election.enable=false, replication.factor, min.insync.replicas=2)

Solutions: