Apache Kafka MCQs with answers Page - 8

Here, you will find a collection of MCQ questions on Apache Kafka. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. What is a 'consumer lag' in Kafka?

  • (A) Time taken to produce a message
  • (B) Time difference between brokers
  • (C) The gap between last produced and last consumed offset
  • (D) Offset of earliest message

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Q. Kafka guarantees message delivery to consumers at which level?

  • (A) At-most-once
  • (B) At-least-once
  • (C) Exactly-once by default
  • (D) Never

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Q. What does Kafka use to monitor health and performance?

  • (A) Kafka Monitor
  • (B) Kafka Streams
  • (C) ZooKeeper logs
  • (D) Kafka Firewall

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Q. What happens when a consumer commits an offset?

  • (A) Message is deleted
  • (B) Kafka sends an acknowledgment to producer
  • (C) Consumer saves progress for future restarts
  • (D) Topic is paused

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Q. Kafka uses what data structure for storing messages?

  • (A) Queue
  • (B) Hash Table
  • (C) Array
  • (D) Log

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Q. Kafka uses ZooKeeper for all except:

  • (A) Cluster coordination
  • (B) Broker registration
  • (C) Offset storage in new versions
  • (D) Leader election

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Q. Which Kafka version introduced KRaft (Kafka Raft Metadata mode)?

  • (A) 2.2
  • (B) 2.6
  • (C) 2.8
  • (D) 3.0

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Q. What is the main benefit of Kafka's partitioning model?

  • (A) Reduces disk usage
  • (B) Increases security
  • (C) Enables scalability and parallelism
  • (D) Simplifies configuration

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Q. Which Kafka client API is used to write messages to topics?

  • (A) Consumer API
  • (B) Producer API
  • (C) Streams API
  • (D) Connect API

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Q. What does the 'linger.ms' configuration do in Kafka producer?

  • (A) Sets how long to wait before retrying
  • (B) Delays the request to allow batching
  • (C) Determines the message retention time
  • (D) Configures consumer delay

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