Question 1

Where does Kafka store Consumer offsets?

Options :

A : Controller

B : Zookeeper

C : System topic

D : User topic

Answer: C

Question 2

Which of the following is true regarding thread safety in the Java Kafka Clients?

Options :

A : One Producer can be safely used in multiple threads

B : One Consumer can be safely used in multiple threads

C : One Consumer needs to run in one thread

D : One Producer needs to be run in one thread

Answer: A,C

Question 3

while (true) {ConsumerRecords< String, String > records = consumer.poll(100);try {consumer.commitSync();} catch (CommitFailedException e) {log.error('commit failed', e)}for (ConsumerRecord< String, String > record records){System.out.printf('topic = %s, partition = %s, offset =%d, customer = %s, country = %s',record.topic(), record.partition(),record.offset(), record.key(), record.value());}}What kind of delivery guarantee this consumer offers?

Options :

A : Exactly-once

B : At-least-once

C : At-most-once

Answer: C

Question 4

Which statement is/are true?

Options :

A : Kafkacat is supported by a confluent platform.

B : Kafkacat is an alternative to kafka-console-producer and kafka-console-consumer.

C : Kafkacat is an API framework.

D : Kafkacat is a command-line utility.

Answer: D

Question 5

A producer is sending messages with null key to a topic with 6 partitions using the DefaultPartitioner. Where will the messages be stored?

Options :

A : Partition 5

B : Any of the topic partitions

C : The partition for the null key

D : Partition 0

Answer: A

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