Online Access Free CCAAK Practice Test

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.)

• A.The Controller is responsible for electing Leaders among the partitions and replicas.
• B.The Controller is responsible for reassigning partitions to the consumers in a Consumer Group.
• C.The broker id is used as the epoch number to prevent a split brain scenario.
• D.Kafka uses ZooKeeper's ephemeral node feature to elect a controller.
• E.The number of Controllers should always be equal to the number of brokers alive in the cluster.
• F.The Controller uses the epoch number to prevent a split brain scenario.

Why does Kafka use ZooKeeper? (Choose two.)

• A.To scale the number of brokers in the cluster
• B.To access information about the leaders and partitions
• C.For controller election
• D.To prevent replication between clusters

An employee in the reporting department needs assistance because their data feed is slowing down. You start by quickly checking the consumer lag for the clients on the data stream.
Which command will allow you to quickly check for lag on the consumers?

• A.bin/kafka-reassign-partitions.sh
• B.bin/kafka-consumer-groups.sh
• C.bin/kafka-consumer-lag.sh
• D.bin/kafka-consumer-group-throughput.sh

Your organization has a mission-critical Kafka cluster that must be highly available. A Disaster Recovery (DR) cluster has been set up using Replicator, and data is continuously being replicated from source cluster to the DR cluster. However, you notice that the message on offset 1002 on source cluster does not seem to match with offset 1002 on the destination DR cluster.
Which statement is correct?

• A.The DR cluster is lagging behind updates; once the DR cluster catches up, the messages will match.
• B.The message was updated on source cluster, but the update did not flow into destination DR cluster and errored.
• C.The message on DR cluster got over-written accidently by another application.
• D.The offsets for the messages on the source, destination cluster may not match.

Kafka broker supports which Simple Authentication and Security Layer (SASL) mechanisms for authentication? (Choose three.)

• A.SASL/OTP
• B.SASL/OAUTHBEARER
• C.SASL/PLAIN
• D.SASL/SAML20
• E.SASL/GSSAPI (Kerberos)