Confluent Certified Administrator for Apache Kafka Exam Questions Can Help You Gain Massive Knowledge - ITexamReview

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Confluent CCAAK Exam Syllabus Topics:

Topic	Details
Topic 1	Kafka Connect: This section of the exam measures skills of a Site Reliability Engineer and addresses the use and management of Kafka Connect for data integration. It includes setting up connectors, managing configurations, and ensuring efficient movement of data between Kafka and external systems.
Topic 2	Apache Kafka® Security: This section of the exam measures skills of a Site Reliability Engineer and focuses on securing Kafka environments. It includes authentication mechanisms such as TLS and SASL, authorization using ACLs, and encrypting data at rest and in transit to ensure secure communication and access control.
Topic 3	Deployment Architecture: This section of the exam measures skills of a Kafka Administrator and covers different Kafka deployment topologies. It evaluates understanding of high availability, disaster recovery, multi-data center replication, and the roles of Zookeeper or KRaft in the cluster architecture.

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Confluent Certified Administrator for Apache Kafka Sample Questions (Q53-Q58):

NEW QUESTION # 53
You have a Kafka cluster with topics t1 and t2. In the output below, topic t2 shows Partition 1 with a leader "-1".
What is the most likely reason for this?
...
$ kafka-topics --zookeeper localhost:2181 --describe --topic t1
Topic:t1 PartitionCount 1 ReplicationFactor 1 Configs:
Topic: t1 Partition: 0 Leader: 0 Replicas: 0 Isr: 0
$ kafka-topics --zookeeper localhost:2181 --describe --topic t2
Topic:t2 PartitionCount 2 ReplicationFactor 1 Configs:
Topic: t2 Partition: 0 Leader: 0 Replicas: 0 Isr: 0
Topic: t2 Partition: 1 Leader: -1 Replicas: 1 Isr:

A. Leader shows "-1" while the log cleaner thread runs on Broker 1.
B. Broker 1 failed.
C. Compression has been enabled on Broker 1.
D. Broker 1 has another partition clashing with the same name.

Answer: B

Explanation:
A Leader of -1 indicates that no broker is currently the leader for that partition. This usually happens when the only replica for that partition is unavailable, often due to the associated broker (in this case, Broker 1) failing or being offline. Kafka cannot elect a leader if no replica is in the in-sync replica (ISR) list, which leads to leader = -1.

NEW QUESTION # 54
Where are Apache Kafka Access Control Lists stored'?

A. ZooKeeper
B. Connect
C. Broker
D. Schema Registry

Answer: A

Explanation:
In Apache Kafka (open-source), Access Control Lists (ACLs) are stored in ZooKeeper. Kafka brokers retrieve and enforce ACLs from ZooKeeper at runtime.

NEW QUESTION # 55
You want to increase Producer throughput for the messages it sends to your Kafka cluster by tuning the batch size ('batch size') and the time the Producer waits before sending a batch ('linger.ms').
According to best practices, what should you do?

A. Decrease 'batch.size' and increase 'linger.ms'
B. Increase 'batch.size' and increase 'linger.ms'
C. Decrease 'batch.size' and decrease 'linger.ms'
D. Increase 'batch.size' and decrease 'linger.ms'

Answer: B

Explanation:
Increasing batch.size allows the producer to accumulate more messages into a single batch, improving compression and reducing the number of requests sent to the broker.
Increasing linger.ms gives the producer more time to fill up batches before sending them, which improves batching efficiency and throughput.
This combination is a best practice for maximizing throughput, especially when message volume is high or consistent latency is not a strict requirement.

NEW QUESTION # 56
Which valid security protocols are included for broker listeners? (Choose three.)

A. PLAINTEXT
B. SASL_SSL
C. SSL
D. SASL
E. GSSAPI

Answer: A,B,C

NEW QUESTION # 57
A topic 'recurring payments' is created on a Kafka cluster with three brokers (broker id '0', '1', '2') and nine partitions. The 'min.insync replicas' is set to three, and producer is set with 'acks' as 'all'. Kafka Broker with id '0' is down.
Which statement is correct?

A. Consumers can read committed messages from partitions on broker id T, "2
B. Producers can write messages to all the partitions, because new leaders for the partitions will be elected.
C. Producers and consumers will have no impact on six of the nine partitions.
D. Producers will only be able to write messages to the topic where the Leader for the partition is on Broker id T.

Answer: C

Explanation:
With 9 partitions spread across 3 brokers, each broker typically hosts 3 leaders (assuming even distribution). When Broker 0 fails, the partitions for which it was leader will elect new leaders on brokers 1 or 2 if enough in-sync replicas (ISRs) remain. But since min.insync.replicas=3 and only 2 brokers are up, no partition can meet the minimum in-sync replica requirement, so producers with acks=all will fail to write. However, for partitions where Broker 0 is not the leader, consumers can still read committed messages. Given that only 3 partitions likely had Broker 0 as leader, six partitions remain accessible for reads, but not writes.

NEW QUESTION # 58
......

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Confluent Certified Administrator for Apache Kafka Exam Questions Can Help You Gain Massive Knowledge - ITexamReview

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