Changed CCDAK Exam Questions

Confluent Certified Developer for Apache Kafka Certification Examination Questions and Answers

Question 5

To allow consumers in a group to resume at the previously committed offset, I need to set the proper value for...

value.deserializer

auto.offset.resets

group.id

enable.auto.commit

Question 6

Select all the way for one consumer to subscribe simultaneously to the following topics - topic.history, topic.sports, topic.politics? (select two)

consumer.subscribe(Pattern.compile("topic\..*"));

consumer.subscribe("topic.history"); consumer.subscribe("topic.sports"); consumer.subscribe("topic.politics");

consumer.subscribePrefix("topic.");

consumer.subscribe(Arrays.asList("topic.history", "topic.sports", "topic.politics"));

Question 7

The exactly once guarantee in the Kafka Streams is for which flow of data?

Kafka => Kafka

Kafka => External

External => Kafka

Question 8

What happens if you write the following code in your producer? producer.send(producerRecord).get()

Compression will be increased

Throughput will be decreased

It will force all brokers in Kafka to acknowledge the producerRecord

Batching will be increased