Confluent CCDAK valid study dumps : Confluent Certified Developer for Apache Kafka Certification Examination

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Confluent CCDAK Exam Syllabus Topics:

Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions:

1. Your application is consuming from a topic with one consumer group.
The number of running consumers is equal to the number of partitions.
Application logs show that some consumers are leaving the consumer group during peak time, triggering a rebalance. You also notice that your application is processing many duplicates.
You need to stop consumers from leaving the consumer group.
What should you do?

A) Add more consumer instances.
B) Increase session.timeout.ms property.
C) Reduce max.poll.records property.
D) Split consumers in different consumer groups.

2. (Your application consumes from a topic configured with a deserializer.
You want the application to be resilient to badly formatted records (poison pills).
You surround the poll() call with a try/catch block for RecordDeserializationException.
You need to log the bad record, skip it, and continue processing other records.
Which action should you take in the catch block?)

A) Log the bad record and call consumer.skip() method.
B) Throw a runtime exception to trigger a restart of the application.
C) Log the bad record; no other action is needed.
D) Log the bad record and seek the consumer to the offset of the next record.

3. (You have a Kafka Connect cluster with multiple connectors deployed.
One connector is not working as expected.
You need to find logs related to that specific connector to investigate the issue.
How can you find the connector's logs?)

A) Modify the log4j.properties file to add a dedicated log appender for the connector.
B) Modify the log4j.properties file to enable connector context.
C) Make no change; there is no way to isolate connector logs.
D) Change the log level to DEBUG to include connector context information.

4. (An S3 source connector named s3-connector stopped running.
You use the Kafka Connect REST API to query the connector and task status.
One of the three tasks has failed.
You need to restart the connector and all currently running tasks.
Which REST request will restart the connector instance and all its tasks?)

A) POST /connectors/s3-connector/restart?includeTasks=true
B) POST /connectors/s3-connector/restart
C) POST /connectors/s3-connector/restart?includeTasks=true&onlyFailed=true
D) POST /connectors/s3-connector/tasks/0/restart

5. (You are writing a producer application and need to ensure proper delivery.
You configure the producer with acks=all.
Which two actions should you take to ensure proper error handling?
Select two.)

A) Use a callback argument in producer.send() where you check delivery status.
B) Surround the call to producer.send() with a try/catch block to catch KafkaException.
C) Check the value of ProducerRecord.status().
D) Check that producer.send() returned a RecordMetadata object and is not null.

Solutions: