Most Recent Confluent CCDAK Exam Questions & Answers

Prepare for the Confluent Certified Developer for Apache Kafka exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the Confluent CCDAK exam and achieve success.

The questions for CCDAK were last updated on Nov 20, 2024.

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Question No. 1

In Avro, removing or adding a field that has a default is a __ schema evolution

Afull

Bbackward

Cbreaking

Dforward

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Correct Answer: A

Clients with new schema will be able to read records saved with old schema and clients with old schema will be able to read records saved with new schema.

Question No. 2

How do Kafka brokers ensure great performance between the producers and consumers? (select two)

AIt compresses the messages as it writes to the disk

BIt leverages zero-copy optimisations to send data straight from the page-cache

CIt buffers the messages on disk, and sends messages from the disk reads

DIt transforms the messages into a binary format

EIt does not transform the messages

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Correct Answer: B, E

Kafka transfers data with zero-copy and sends the raw bytes it receives from the producer straight to the consumer, leveraging the RAM available as page cache

Question No. 3

In Java, Avro SpecificRecords classes are

Aautomatically generated from an Avro Schema

Bwritten manually by the programmer

Cautomatically generated from an Avro Schema + a Maven / Gradle Plugin

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Correct Answer: C

SpecificRecord is created from generated record classes

Question No. 4

If I produce to a topic that does not exist, and the broker setting auto.create.topic.enable=true, what will happen?

AKafka will automatically create the topic with 1 partition and 1 replication factor

BKafka will automatically create the topic with the indicated producer settings num.partitions and default.replication.factor

CKafka will automatically create the topic with the broker settings num.partitions and default.replication.factor

DKafka will automatically create the topic with num.partitions=#of brokers and replication.factor=3

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Correct Answer: C

The broker settings comes into play when a topic is auto created

Question No. 5

The rule "same key goes to the same partition" is true unless...

Athe number of producer changes

Bthe number of kafka broker changes

Cthe number of partition changes

Dthe replication factor changes

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Correct Answer: C

Increasing the number of partition causes new messages keys to get hashed differently, and breaks the guarantee 'same keys goes to the same partition'. Kafka logs are immutable and the previous messages are not re-shuffled.

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