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. A stream processing application is tracking user activity in online shopping carts.
You want to identify periods of user inactivity.
Which type of Kafka Streams window should you use?

A) Tumbling
B) Session
C) Sliding
D) Hopping

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

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

3. You use Kafka Connect with the JDBC source connector to extract data from a large database and push it into Kafka.
The database contains tens of tables, and the current connector is unable to process the data fast enough.
You add more Kafka Connect workers, but throughput doesn't improve.
What should you do next?

A) Increase the number of Kafka partitions for the topics.
B) Add more Kafka brokers to the cluster.
C) Increase the value of the connector's property tasks.max.
D) Modify the database schemas to enable horizontal sharding.

4. Which is true about topic compaction?

A) Compaction will keep exactly one message per key after compaction of inactive log segments.
B) When a client produces a new event with an existing key, the broker immediately deletes the offset of the existing event.
C) When a client produces a new event with an existing key, the old value is overwritten with the new value in the compacted log segment.
D) Topic compaction does not remove old events; instead, when clients consume events from a compacted topic, they store events in a hashmap that maintains the latest value.

5. You need to collect logs from a host and write them to a Kafka topic named 'logs-topic'. You decide to use Kafka Connect File Source connector for this task.
What is the preferred deployment mode for this connector?

A) Parallel mode
B) Distributed mode
C) SingleCluster mode
D) Standalone mode

Solutions: