Test your expertise in Apache Kafka concepts with real-world scenarios covering multi-datacenter deployments, event sourcing patterns, performance optimization, and production troubleshooting. This quiz will challenge your understanding of Kafka's internals and best practices for building reliable, scalable distributed systems.


Question 1

Correct Answers: 1/4

In your multi-datacenter Kafka deployment, you notice messages appearing multiple times in the destination cluster. What's the likely configuration issue?


Question 2

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You're building a security audit system where every record must be preserved. Which Kafka configuration is most critical?


Question 3

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Your Kafka Streams application crashes when deploying a new version. What's the safest way to restart processing?


Question 4

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During a network partition, your Kafka cluster shows unusual leader elections. What's the correct min.insync.replicas setting to prevent data loss in a 5-broker cluster?


Question 5

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Your Kafka cluster's disk usage suddenly spikes. Which metric should you check first?


Question 6

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Your event-driven microservices occasionally process events out of order. Which pattern should you implement?


Question 7

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Your Kafka Connect source connector keeps failing with OOM errors. What's the best solution?


Question 8

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In your CQRS application, read replicas lag behind write operations. Which Kafka feature would help?


Question 9

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Your Kafka Streams application shows increasing memory usage over time. What's likely causing this?


Question 10

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Your real-time fraud detection system needs to correlate events within a 5-minute window. Which Kafka Streams operator is most appropriate?


Question 11

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Your Kafka producers suddenly start showing high latency. Which metric should you check first?


Question 12

Correct Answers: 1/4

Your clickstream analysis pipeline drops events during high traffic. How should you modify the consumer configuration?


Question 13

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Your Kafka cluster's under-replicated partitions spike during peak hours. What should you check first?


Question 14

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In your event sourcing system, some events are missing when rebuilding state. What's the likely cause?


Question 15

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Your mission-critical Kafka cluster needs the strongest possible durability guarantees. Which configuration combination is most appropriate?


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