Confluent CCDAK Practice Questions| TestInsights

Question 1

You are using JDBC source connector to copy data from a table to Kafka topic. There is one connector created with max.tasks equal to 2 deployed on a cluster of 3 workers. How many tasks are launched?

Correct : C

JDBC connector allows one task per table.

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Question 3

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

AOne Producer can be safely used in multiple threads

BOne Consumer can be safely used in multiple threads

COne Consumer needs to run in one thread

DOne Producer needs to be run in one thread

Correct : A, C

KafkaConsumer is not thread-safe, KafkaProducer is thread safe.

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AOne Producer can be safely used in multiple threads

BOne Consumer can be safely used in multiple threads

COne Consumer needs to run in one thread

DOne Producer needs to be run in one thread

Question 4

There are 3 brokers in the cluster. You want to create a topic with a single partition that is resilient to one broker failure and one broker maintenance. What is the replication factor will you specify while creating the topic?

Correct : B

1 is not possible as it doesn't provide resilience to failure, 2 is not enough as if we take a broker down for maintenance, we cannot tolerate a broker failure, and 6 is impossible as we only have 3 brokers (RF cannot be greater than the number of brokers). Here the correct answer is 3

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Question 5

A topic "sales" is being produced to in the Americas region. You are mirroring this topic using Mirror Maker to the European region. From there, you are only reading the topic for analytics purposes. What kind of mirroring is this?

APassive-Passive

BActive-Active

CActive-Passive

Correct : C

This is active-passing as the replicated topic is used for read-only purposes only

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APassive-Passive

BActive-Active

CActive-Passive

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