Confluent CCDAK : 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. Which two statements are correct when assigning partitions to the consumers in a consumer group using the assign() API?
(Select two.)

A) All topics must have the same number of partitions to use assign() API.
B) It is mandatory to subscribe to a topic before calling assign() to assign partitions.
C) The consumer chooses which partition to read without any assignment from brokers.
D) The consumer group will not be rebalanced if a consumer leaves the group.

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

3. Clients that connect to a Kafka cluster are required to specify one or more brokers in the bootstrap.servers parameter.
What is the primary advantage of specifying more than one broker?

A) It provides the ability to wake up dormant brokers.
B) It forces clients to enumerate every single broker in the cluster.
C) It is the mechanism to distribute a topic's partitions across multiple brokers.
D) It provides redundancy in making the initial connection to the Kafka cluster.

4. Which tool can you use to modify the replication factor of an existing topic?

A) kafka-recreate-topic.sh
B) kafka-reassign-topics.sh
C) kafka-topics.sh
D) kafka-reassign-partitions.sh

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

Solutions: