Confluent CCAAK Exam Questions Instant Access

Question 1

What is the relationship between topics and partitions? (Choose two.)

AAtopic always has one partition.

BAtopic may have more than one partition.

CA partition is always linked to a single topic.

DA partition may have more than one topic.

EThere is no relationship between topics and partitions.

Answer : B, C

Kafka topics are split into one or more partitions to enable parallelism and scalability.

Each partition belongs to exactly one topic; it cannot span multiple topics.

Question 2

You are managing a cluster with a large number of topics, and each topic has a lot of partitions. A team wants to significantly increase the number of partitions for some topics.

Which parameters should you check before increasing the partitions?

ACheck the producer batch size and buffer size.

BCheck if compression is being used.

CCheck the max open file count on brokers.

DCheck if acks=all is beina used.

Answer : C

Each Kafka partition maps to multiple log segment files, and each segment results in open file descriptors on the broker. When the number of partitions increases significantly, it can exceed the OS-level limit for open files per broker process, leading to failures or degraded performance. Therefore, it is essential to check and possibly increase the ulimit -n (max open files) setting on the broker machines.

Question 3

What are benefits to gracefully shutting down brokers? (Choose two.)

AIt will sync all its logs to disk to avoid needing to do any log recovery when it restarts.

BIt will migrate any partitions the server is the leader for to other replicas prior to shutting down.

CIt will automatically re-elect leaders on restart.

DIt will balance the partitions across brokers before restarting.

Answer : A, B

A graceful shutdown ensures that logs are flushed to disk, minimizing recovery time during restart.

Kafka performs controlled leader migration during a graceful shutdown to avoid disruption and ensure availability.

Question 4

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.)

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

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

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

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

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

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

Answer : A, B, C

Kafka relies on ZooKeeper's ephemeral nodes to detect if a broker (controller) goes down and to elect a new controller.

The controller manages partition leadership assignments and handles leader election when a broker fails.

The epoch number ensures coordination and avoids outdated controllers acting on stale data.

Question 5

Which property in broker configuration specifies that a broker belongs to a particular rack?

Aclient.rack

Bbroker.rack

Czookeeper.rack

Dkafka.rack

Answer : B

The broker.rack property is used in a Kafka broker's configuration to specify the rack or availability zone the broker belongs to. This is important for rack-aware replica placement, allowing Kafka to distribute replicas across different racks for fault tolerance.

Question 6

Which secure communication is supported between the REST proxy and REST clients?

ATLS (HTTPS)

BMD5

CSCRAM

DKerberos

Answer : A

Question 7

Which of the following are Kafka Connect internal topics? (Choose three.)

Aconnect-confiqs

Bconnect-distributed

Cconnect-status

Dconnect-standalone

Econnect-offsets

Answer : A, C, E

connect-configs stores connector configurations.

connect-status tracks the status of connectors and tasks (e.g., RUNNING, FAILED).

connect-offsets stores source connector offsets for reading from external systems.

Confluent Certified Administrator for Apache Kafka CCAAK Exam Questions