Apache Kafka Objective Questions and Answers

This Apache Kafka quiz contains carefully curated objective questions with correct answers and clear explanations. It is designed for developers, data engineers, and interview preparation, covering Kafka internals, distributed messaging concepts, fault tolerance, and real-time streaming best practices.

Practice Apache Kafka MCQs with Detailed Explanations

Answer at least 12 questions to submit and verify answers.

1 What is the primary role of Apache Kafka in distributed systems? Easy

2 What is a Kafka topic? Easy

3 Which component is responsible for storing Kafka data? Medium

4 What is the purpose of partitions in Kafka? Medium

5 What ensures fault tolerance in Kafka? Medium

6 What is an offset in Kafka? Medium

7 Which API is used to publish messages to Kafka? Easy

8 What does ISR stand for in Kafka? Medium

9 What happens if a leader broker fails? Medium

10 Which guarantee ensures messages are not lost but may be duplicated? Medium

11 What is idempotent producer in Kafka? High

12 Which property enables exactly-once semantics? High

13 What is a consumer group? Medium

14 If a topic has 3 partitions and a consumer group has 5 consumers, how many consumers will be idle? High

15 Which Kafka component was traditionally used for cluster coordination? Medium