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Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions:

1. (You need to set alerts on key broker metrics to trigger notifications when a Kafka cluster is unhealthy.
What are three minimum broker metrics to monitor for cluster health?
Select three.)

A) kafka.controller:type=KafkaController,name=TopicsToDeleteCount
B) kafka.controller:type=ControllerStats,name=UncleanLeaderElectionsPerSec
C) kafka.controller:type=KafkaController,name=ActiveControllerCount
D) kafka.controller:type=KafkaController,name=OfflinePartitionsCount
E) kafka.controller:type=KafkaController,name=LastCommittedRecordOffset

2. Which partition assignment minimizes partition movements between two assignments?

A) RoundRobinAssignor
B) StickyAssignor
C) RangeAssignor
D) PartitionAssignor

3. (You deploy a Kafka Streams application with five application instances.
Kafka Streams stores application metadata using internal topics.
Auto-topic creation is disabled in the Kafka cluster.
Which statement about this scenario is true?)

A) The application will work, but application metadata will not be stored.
B) The application will continue to work and internal topics will be created, even if auto-topic creation is disabled.
C) The application will be on hold until internal topics are created manually.
D) The application will terminate with a non-retriable exception.

4. You need to consume messages from Kafka using the command-line interface (CLI).
Which command should you use?

A) kafka-console-consumer
B) kafka-consume
C) kafka-consumer
D) kafka-get-messages

5. (You create a topic with five partitions.
What can you assume about messages read from that topic by a single consumer group?)

A) Messages from one partition can be consumed by any of the consumers in a group for faster processing.
B) All messages will be read from exactly one broker by the consumer group.
C) Messages can be consumed by a maximum of five consumers in the same consumer group.
D) The consumer group can only read the same number of messages from all the partitions.

Solutions: