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Confluent CCDAK or Confluent Certified Developer for Apache Kafka Certification Examination is an extensive test that measures a candidate's knowledge and abilities to develop and manage Apache Kafka applications in a distributed environment using the Confluent platform. Confluent Certified Developer for Apache Kafka Certification Examination certification exam is meant for developers, architects, engineers, and data scientists, who are responsible for building real-time streaming applications using open-source Kafka.

Confluent Certified Developer for Apache Kafka (CCDAK) certification exam is designed for individuals who want to demonstrate their expertise in using Apache Kafka to build data streaming applications. Confluent Certified Developer for Apache Kafka Certification Examination certification is offered by Confluent, a leading provider of data streaming platforms and solutions. The CCDAK Certification Exam is an industry-recognized validation of an individual's knowledge and skills in designing, developing, and deploying event-driven, real-time streaming applications using Apache Kafka.

Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions (Q41-Q46):

NEW QUESTION # 41
In Avro, adding an element to an enum without a default is a __ schema evolution

A. full
B. breaking
C. forward
D. backward

Answer: B

Explanation:
Since Confluent 5.4.0, Avro 1.9.1 is used. Since default value was added to enum complex type , the schema resolution changed from:
(<1.9.1) if both are enums:** if the writer's symbol is not present in the reader's enum, then an error is signalled. **(>=1.9.1) if both are enums:
if the writer's symbol is not present in the reader's enum and the reader has a default value, then that value is used, otherwise an error is signalled.

NEW QUESTION # 42
Kafka is configured with following parameters - log.retention.hours = 168 log.retention.minutes = 168 log.
retention.ms = 168 How long will the messages be retained for?

A. 168 minutes
B. Broker will not start due to bad configuration
C. 168 ms
D. 168 hours

Answer: C

Explanation:
If more than one similar config is specified, the smaller unit size will take precedence.

NEW QUESTION # 43
You use Kafka Connect with the JDBC source connector to extract data from a large database and push it into Kafka.
The database contains tens of tables, and the current connector is unable to process the data fast enough.
You add more Kafka Connect workers, but throughput doesn't improve.
What should you do next?

A. Add more Kafka brokers to the cluster.
B. Increase the number of Kafka partitions for the topics.
C. Increase the value of the connector's property tasks.max.
D. Modify the database schemas to enable horizontal sharding.

Answer: C

Explanation:
Increasing tasks.max allows the connector to create multiple tasks, each responsible for processing different tables or table partitions. If only one task is used, adding more workers has no effect.
From Kafka Connect JDBC Connector Docs:
"Use tasks.max to configure how many tasks are created for the connector. Each task can process a subset of the data." A and C help only if the bottleneck is in Kafka, not Connect.
D is a large architectural change, not the first step.
Reference: Kafka Connect JDBC Connector Configuration

NEW QUESTION # 44
You want to connect with username and password to a secured Kafka cluster that has SSL encryption.
Which properties must your client include?

A. security.protocol=SSL
sasl.jaas.config=org.apache.kafka.common.security.plain.PlainLoginModule required username='myUser' password='myPassword';
B. security.protocol=SASL_PLAINTEXT
sasl.jaas.config=org.apache.kafka.common.security.plain.PlainLoginModule required username='myUser' password='myPassword';
C. security.protocol=SASL_SSL
sasl.jaas.config=org.apache.kafka.common.security.plain.PlainLoginModule required username='myUser' password='myPassword';
D. security.protocol=PLAINTEXT
sasl.jaas.config=org.apache.kafka.common.security.ssl.TlsLoginModule required username='myUser' password='myPassword';

Answer: C

Explanation:
ForSASL/PLAIN authentication over SSL, the correct combination is:
* security.protocol=SASL_SSL
* sasl.jaas.config=...PlainLoginModule required username=... password=...
FromKafka Security Documentation:
"For SASL/PLAIN over SSL, configure security.protocol=SASL_SSL and provide login module configuration using sasl.jaas.config." Options B and D are incorrect because they do not pair the correct protocol with the authentication method.
Reference:Apache Kafka Security Configs > SASL_SSL, PLAIN mechanism

NEW QUESTION # 45
(Which configuration is valid for deploying a JDBC Source Connector to read all rows from the orders table and write them to the dbl-orders topic?)

A. {"name": "jdbc-source","connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector","tasks.
max": "1","connection.url": "jdbc:mysql://mysql:3306/dbl?user=user&password=pas","topic.prefix":
"dbl-","table.whitelist": "orders"}
B. {"name": "dbl-orders","connector.class": "io.confluent.connect.jdbc.DdbcSourceConnector","tasks.
max": "1","connection.url": "jdbc:mysql://mysql:3306/dbl?user=user&password=pas","topic.prefix":
"dbl-","table.blacklist": "ord*"}
C. {"name": "orders-connect","connector.class": "io.confluent.connect.jdbc.DdbcSourceConnector","tasks.
max": "1","connection.url": "jdbc:mysql://mysql:3306/dbl","topic.whitelist": "orders","auto.create":
"true"}
D. {"name": "jdbc-source","connector.class": "io.confluent.connect.jdbc.DdbcSourceConnector","tasks.
max": "1","connection.url": "jdbc:mysql://mysql:3306/dbl?user=user&useAutoAuth=true","topic.
prefix": "dbl-","table.whitelist": "orders"}

Answer: A

Explanation:
According to the official Apache Kafka Connect and Confluent JDBC Source Connector documentation, the correct connector class for a JDBC source connector is io.confluent.connect.jdbc.JdbcSourceConnector. This connector is used to read data from relational databases and publish each table as a Kafka topic.
To read all rows from a specific table, the configuration must include table.whitelist (or table.include.list in newer versions) with the table name, and a topic.prefix to determine the Kafka topic name. In this case, using topic.prefix=dbl- with table.whitelist=orders results in records being written to the dbl-orders topic, which matches the requirement.
Options A, B, and C are invalid because they reference a non-existent connector class (DdbcSourceConnector), contain unsupported properties such as topic.whitelist for a source connector, or include malformed/incorrect JDBC parameters. Additionally, blacklisting tables does not ensure that only the orders table is read.
Therefore, option D is the only configuration that is syntactically correct, uses the proper connector class, and aligns with the official Kafka Connect JDBC Source Connector documentation.

NEW QUESTION # 46
......

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Valid CCDAK Study Plan - CCDAK Latest Guide Files

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Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions (Q41-Q46):

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