Confluent CCDAK : Confluent Certified Developer for Apache Kafka Certification Examination

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Confluent CCDAK Exam Syllabus Topics:

Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions:

1. Match each configuration parameter with the correct option.
To answer choose a match for each option from the drop-down. Partial
credit is given for each correct answer.

2. (Which configuration determines the maximum number of records a consumer can poll in a single call to poll()?)

A) max.poll.records.interval
B) fetch.max.records
C) max.records.consumer
D) max.poll.records

3. You create a topic named loT-Data with 10 partitions and replication factor of three.
A producer sends 1 MB messages compressed with Gzip.
Which two statements are true in this scenario?
(Select two.)

A) The message is already compressed so it will not be serialized.
B) By default, compression is the producer's responsibility.
C) Compression type will be stored in batch attributes.
D) All compressed messages will be stored in the same topic partition.

4. You are writing to a topic with acks=all.
The producer receives acknowledgments but you notice duplicate messages.
You find that timeouts due to network delay are causing resends.
Which configuration should you use to prevent duplicates?

A) retries=0max.in.flight.requests.per.connection=5enable.idempotence=true
B) enable.auto.commit=true
C) retries=2147483647max.in.flight.requests.per.connection=5enable.idempotence=true
D) retries=2147483647max.in.flight.requests.per.connection=1enable.idempotence=false

5. Which two statements are correct about transactions in Kafka?
(Select two.)

A) Consumers can consume both committed and uncommitted transactions.
B) All messages from a failed transaction will be deleted from a Kafka topic.
C) Information about producers and their transactions is stored in the _transaction_state topic.
D) Transactions are only possible when writing messages to a topic with single partition.
E) Transactions guarantee at least once delivery of messages.

Solutions: