Question 1
A Kafka cluster is experiencing high request latency. The num.io.threads pool is saturated. Which is the most appropriate first response?
Correct Answer:
Increase num.io.threads incrementally and monitor handler utilization
Question 2
Which metric is the clearest early warning that a broker's I/O handler threads are saturated?
Correct Answer:
RequestHandlerAvgIdlePercent below 0.3
Question 3
A production Kafka cluster is running G1GC. Which JVM option is most relevant to reducing GC pause times?
Correct Answer:
-XX:MaxGCPauseMillis=20
Question 4
What is the typical recommended heap size range for a Kafka broker in production?
Correct Answer:
6-8 GB with the rest of RAM reserved for the page cache
Question 5
Which Linux kernel setting is typically increased on Kafka brokers to support many open files and network connections?
Correct Answer:
nofile and nproc ulimits
Question 1
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About this Exam

Prepare with the CCOAK Practice Questions - Confluent Certified Operator for Apache Kafka (CCOAK) Exam practice quiz. This question bank includes 100 questions covering kafka, cluster, broker, production, and brokers. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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CCOAK Practice Questions - Confluent Certified Operator for Apache Kafka (CCOAK) Exam

This practice set contains 100 questions from the matching question bank and focuses on kafka, cluster, broker, production, and brokers. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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