Kafka MCQs - Kafka in Production & Testing

21.) Which Kafka tool can be used for performance testing?

A) kafka-producer-perf-test.sh

B) kafka-load-runner.sh

C) kafka-monitor.sh

D) kafka-consumer-perf-test.sh

Answer: Option A

Explanation: This tool helps test Kafka producer performance under various loads.

22.) What is the best practice for log retention in a production Kafka setup?

A) Set it to 1 hour

B) Infinite retention

C) Based on business requirements

D) 7 years for audit

Answer: Option C

Explanation: Retention should align with business needs and storage limits.

23.) In testing, how can you validate a Kafka topic received all expected messages?

A) Count messages manually

B) Use Kafka Connect

C) Check broker logs

D) Consume from topic and validate count

Answer: Option D

Explanation: You can create a temporary consumer group and compare counts.

24.) Which command is used to consume messages from the beginning?

A) –reset-offset

B) –from-earliest

C) –seek=0

D) –read-all

Answer: Option B

Explanation: This tells the consumer to start reading from the oldest available message.

25.) Which Kafka configuration helps reduce disk usage?

A) log.retention.bytes

B) message.timeout.ms

C) acks=0

D) buffer.size

Answer: Option A

Explanation: This restricts total log size per topic partition.

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Kafka MCQs – Kafka in Production & Testing