Confluent CCAAK Exam Questions

Question 6 of 54

You are using Confluent Schema Registry to provide a RESTful interface for storing and retrieving schemas.
Which types of schemas are supported? (Choose three.)

Question 7 of 54

Multiple clients are sharing a Kafka cluster.
As an administrator, how would you ensure that Kafka resources are distributed fairly to all clients?

Quotas

Consumer Groups

Rebalancing

ACLs

Correct Answer: A

Question 8 of 54

A customer has a use case for a ksqlDB persistent query. You need to make sure that duplicate messages are not processed and messages are not skipped.
Which property should you use?

processing.guarantee=exactly_once

ksql.streams auto offset.reset=earliest

ksql.streams auto.offset.reset=latest

ksql.fail.on.production.error=false

Correct Answer: A

Question 9 of 54

If a broker's JVM garbage collection takes too long, what can occur?

There will be a trigger of the broker's log cleaner thread.

ZooKeeper believes the broker to be dead.

There is backpressure to, and pausing of, Kafka clients.

Log files written to disk are loaded into the page cache.

Correct Answer: B

Question 10 of 54

You are managing a Kafka cluster with five brokers (broker id '0', '1','2','3','4') and three ZooKeepers. There are 100 topics, five partitions for each topic, and replication factor three on the cluster. Broker id ‘0’ is currently the Controller, and this broker suddenly fails.
Which statements are correct? (Choose three.)

Kafka uses ZooKeeper's ephemeral node feature to elect a controller.

The Controller is responsible for electing Leaders among the partitions and replicas.

The Controller uses the epoch number to prevent a split brain scenario.

The broker id is used as the epoch number to prevent a split brain scenario.

The number of Controllers should always be equal to the number of brokers alive in the cluster.

The Controller is responsible for reassigning partitions to the consumers in a Consumer Group.

Correct Answer: A, B, C