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Confluent CCAAK Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	Troubleshooting: This section of the exam measures skills of a Kafka Administrator and includes diagnosing common issues in Kafka clusters. It covers problem areas such as performance bottlenecks, message delivery failures, replication issues, and consumer lag, along with techniques to resolve them effectively.
Topic 3	Apache Kafka® Fundamentals: This section of the exam measures skills of a Kafka Administrator and covers core concepts such as Kafka architecture, components, and data flow. It assesses the candidate’s understanding of topics like topics and partitions, brokers, producers, consumers, and message retention.
Topic 4	Observability: This section of the exam measures skills of a Site Reliability Engineer and focuses on monitoring Kafka clusters. It assesses knowledge of metrics, logging, and alerting tools, including how to use them to maintain cluster health and performance visibility.

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Confluent Certified Administrator for Apache Kafka Sample Questions (Q38-Q43):

NEW QUESTION # 38
By default, what do Kafka broker network connections have?

A. Encryption, but no authentication or authorization
B. No encryption, no authentication and no authorization
C. Encryption and authentication, but no authorization
D. No encryption, no authorization, but have authentication

Answer: B

Explanation:
By default, Kafka brokers use the PLAINTEXT protocol for network communication. This means:
* No encryption - data is sent in plain text.
* No authentication - any client can connect without verifying identity.
* No authorization - there are no access control checks by default.
Security features like TLS, SASL, and ACLs must be explicitly configured.

NEW QUESTION # 39
A company has an existing Kafka cluster running without SSL/TLS enabled. The customer wants to enable SSL on brokers to secure data in transit, but they would like to give applications connecting to this cluster some time to migrate to using SSL connection instead of putting a hard stop.
Which solution will meet the customer's requirements?

A. Modify the advertised listeners setting on brokers to use SSL.
B. Enable SSL on the current Listener, and do not enable mTLS.
C. Create a new listener with SSL enabled.
D. Enable SSL on the current listener, and do not implement SSL on application side.

Answer: C

Explanation:
Kafka supports multiple listeners, allowing you to run PLAINTEXT and SSL simultaneously. By creating a new SSL-enabled listener (e.g., on a different port), existing applications can continue using PLAINTEXT while gradually migrating to the SSL listener. This approach avoids downtime and gives clients time to adapt without enforcing a hard cutover.

NEW QUESTION # 40
Per customer business requirements, a system's high availability is more important than message reliability.
Which of the following should be set?

A. The linger.ms should be set to '0'.
B. Unclean leader election should be enabled.
C. Message retention.ms should be set to -1.
D. The number of brokers in the cluster should be always odd (3, 5. 7 and so on).

Answer: B

Explanation:
Enabling unclean leader election allows Kafka to elect a non-in-sync replica as leader if all in-sync replicas are unavailable. This sacrifices message reliability (possible data loss) in favor of high availability, aligning with the requirement.

NEW QUESTION # 41
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. Producers can write messages to all the partitions, because new leaders for the partitions will be elected.
B. Consumers can read committed messages from partitions on broker id T, "2
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 # 42
The Consumer property 'auto offset reset' determines what to do if there is no valid offset for a Consumer Group.
Which scenario is an example of a valid offset and therefore the 'auto.offset.reset' does NOT apply?

A. When an offset points to a message that has been removed by compaction but is still within the current partition.offset range.
B. The Consumer offset is less than the smallest offset in the partition (log start offset).
C. The Consumer Group started for the first time.
D. The Consumer offset is greater than the last offset in the partition (log end offset).

Answer: A

Explanation:
In this scenario, the offset itself is still valid, even though the record at that offset was compacted away. The consumer can continue consuming from the next available record. Therefore, auto.offset.reset does NOT apply, because there is a valid offset present.

NEW QUESTION # 43
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