Confluent Certified Developer for Apache Kafka Certification Examination - CCDAK

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Confluent CCDAK Exam Syllabus Topics:

Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions:

1. (You want to read messages from all partitions of a topic in every consumer instance of your application.
How do you do this?)

A) Use the assign() method using all topic-partitions of the topic as argument.
B) Use the subscribe() method with an empty consumer group name configuration.
C) Use the subscribe() method with a regular expression argument.
D) Use the assign() method with the topic name as argument.

2. An application is consuming messages from Kafka.
The application logs show that partitions are frequently being reassigned within the consumer group.
Which two factors may be contributing to this?
(Select two.)

A) There is a storage issue on the broker.
B) The number of partitions does not match the number of application instances.
C) An instance of the application is crashing and being restarted.
D) There is a slow consumer processing application.

3. 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.tolerance=none
B) errors.deadletterqueue.topic.name=DLQ-Topic
C) errors.deadletterqueue.context.headers.enable=true
D) errors.log.enable=true
E) errors.log.include.messages=true
F) errors.tolerance=all

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

5. (What are two stateless operations in the Kafka Streams API?
Select two.)

A) Join
B) Reduce
C) Filter
D) GroupBy

Solutions: