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Confluent - Developer for Apache Kafka Practice Questions & Free Practice Exam

5 free Confluent - Developer for Apache Kafka practice questions below, with instant explanations. The full simulator contains hundreds of exam-style questions across every topic.

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1Question 1You are here

During a manufacturing pilot, an engineer inspects raw traffic between a client and a broker and sees length-prefixed binary frames over TCP rather than HTTP requests. Which statement about the Kafka wire protocol matches what the engineer sees?

2Question 2

A firehose telemetry producer sets `acks=0` in its client configuration. Which durability property does this setting produce?

3Question 3

Operations discovers that two live consumer instances share the same `group.instance.id` inside a single consumer group. Both processes report a healthy startup and both subscribe to the same topics. Static membership is enabled on the group and the two instances run on separate pods. The instances attempt to join the group at roughly the same time. Which outcome does the group coordinator produce for the pair?

4Question 4

Records arrive already keyed the way the aggregation needs, no upstream operator has changed the key, and the pipeline must avoid writing an unnecessary internal topic. Which operator prepares the aggregation?

5Question 5

With autoComplete set to true on a MockProducer, a test asserts that a registered send callback observes a NetworkException. What outcome does the callback report?

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