Confluent CCDAK

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Confluent CCDAK Exam Syllabus Topics:

Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions:

1. A stream processing application is consuming from a topic with five partitions. You run three instances of the application. Each instance has num.stream.threads=5.
You need to identify the number of stream tasks that will be created and how many will actively consume messages from the input topic.

A) 15 created, 15 actively consuming
B) 5 created, 1 actively consuming
C) 15 created, 5 actively consuming
D) 5 created, 5 actively consuming

2. (Your application consumes from a topic configured with a deserializer.
You want the application to be resilient to badly formatted records (poison pills).
You surround the poll() call with a try/catch block for RecordDeserializationException.
You need to log the bad record, skip it, and continue processing other records.
Which action should you take in the catch block?)

A) Log the bad record; no other action is needed.
B) Log the bad record and seek the consumer to the offset of the next record.
C) Log the bad record and call consumer.skip() method.
D) Throw a runtime exception to trigger a restart of the application.

3. Match the testing tool with the type of test it is typically used to perform.

4. Your Kafka cluster has five brokers. The topic t1 on the cluster has:
Two partitions
Replication factor = 4
min.insync.replicas = 3You need strong durability guarantees for messages written to topic t1.You configure a producer acks=all and all the replicas for t1 are in-sync.How many brokers need to acknowledge a message before it is considered committed?

A) 2
B) 3
C) 5
D) 4

5. What are three built-in abstractions in the Kafka Streams DSL?
(Select three.)

A) KStream
B) KTable
C) GlobalKStream
D) GlobalKTable
E) StreamTable

Solutions: