Spark Cluster Management MCQ Questions with Answers (Latest 2026)

Q1. Which option best describes the driver?

A. A pure cache. B. Coordinates execution; runs main() and SparkContext. C. A pure executor. D. A worker.

Select an answer to check.

Answer: Coordinates execution; runs main() and SparkContext.

Here, Coordinates execution; runs main() and SparkContext. is the right choice. Single per application. It aligns directly with what the question asks about which option best describes the driver. A quick elimination of partially true options helps confirm it.

Q2. What is the primary purpose of the driver?

A. A pure executor. B. A worker. C. Coordinates execution; runs main() and SparkContext. D. A pure cache.

Select an answer to check.

Answer: Coordinates execution; runs main() and SparkContext.

In this case, Coordinates execution; runs main() and SparkContext. is correct. Single per application. It aligns directly with what the question asks about what is the primary purpose of the driver. A quick elimination of partially true options helps confirm it.

Q3. Which statement about the driver is most accurate?

A. Coordinates execution; runs main() and SparkContext. B. A worker. C. A pure executor. D. A pure cache.

Select an answer to check.

Answer: Coordinates execution; runs main() and SparkContext.

The best option here is Coordinates execution; runs main() and SparkContext.. Single per application. It aligns directly with what the question asks about which statement about the driver is most accurate. A quick elimination of partially true options helps confirm it.

Q4. How is the driver best characterized?

A. Coordinates execution; runs main() and SparkContext. B. A pure executor. C. A worker. D. A pure cache.

Select an answer to check.

Answer: Coordinates execution; runs main() and SparkContext.

For this question, Coordinates execution; runs main() and SparkContext. is correct. Single per application. It aligns directly with what the question asks about how is the driver best characterized. A quick elimination of partially true options helps confirm it.

Q5. Which option best describes an executor?

A. The driver. B. Worker JVM that runs tasks and stores cache. C. A pure web server. D. A pure logger.

Select an answer to check.

Answer: Worker JVM that runs tasks and stores cache.

Worker JVM that runs tasks and stores cache. is the correct answer here. Per-node typically. It aligns directly with what the question asks about which option best describes an executor. A quick elimination of partially true options helps confirm it.

Q6. What is the primary purpose of an executor?

A. The driver. B. A pure web server. C. A pure logger. D. Worker JVM that runs tasks and stores cache.

Select an answer to check.

Answer: Worker JVM that runs tasks and stores cache.

Here, Worker JVM that runs tasks and stores cache. is the right choice. Per-node typically. This matches the core idea being tested around what is the primary purpose of an executor. A quick elimination of partially true options helps confirm it.

Q7. Which statement about an executor is most accurate?

A. A pure web server. B. A pure logger. C. Worker JVM that runs tasks and stores cache. D. The driver.

Select an answer to check.

Answer: Worker JVM that runs tasks and stores cache.

In this case, Worker JVM that runs tasks and stores cache. is correct. Per-node typically. This matches the core idea being tested around which statement about an executor is most accurate. A quick elimination of partially true options helps confirm it.

Q8. How is an executor best characterized?

A. The driver. B. Worker JVM that runs tasks and stores cache. C. A pure logger. D. A pure web server.

Select an answer to check.

Answer: Worker JVM that runs tasks and stores cache.

The best option here is Worker JVM that runs tasks and stores cache.. Per-node typically. This matches the core idea being tested around how is an executor best characterized. A quick elimination of partially true options helps confirm it.

Q9. Which option best describes YARN?

A. Hadoop resource manager option for Spark. B. A pure file system. C. A pure cache. D. A pure scheduler.

Select an answer to check.

Answer: Hadoop resource manager option for Spark.

For this question, Hadoop resource manager option for Spark. is correct. Common on-prem option. This matches the core idea being tested around which option best describes yarn. A quick elimination of partially true options helps confirm it.

Q10. What is the primary purpose of YARN?

A. Hadoop resource manager option for Spark. B. A pure cache. C. A pure file system. D. A pure scheduler.

Select an answer to check.

Answer: Hadoop resource manager option for Spark.

Hadoop resource manager option for Spark. is the correct answer here. Common on-prem option. This matches the core idea being tested around what is the primary purpose of yarn. A quick elimination of partially true options helps confirm it.

Q11. Which statement about YARN is most accurate?

A. A pure cache. B. Hadoop resource manager option for Spark. C. A pure scheduler. D. A pure file system.

Select an answer to check.

Answer: Hadoop resource manager option for Spark.

Here, Hadoop resource manager option for Spark. is the right choice. Common on-prem option. That is exactly the concept behind which statement about yarn is most accurate in this context. A quick elimination of partially true options helps confirm it.

Q12. How is YARN best characterized?

A. A pure file system. B. A pure scheduler. C. A pure cache. D. Hadoop resource manager option for Spark.

Select an answer to check.

Answer: Hadoop resource manager option for Spark.

In this case, Hadoop resource manager option for Spark. is correct. Common on-prem option. That is exactly the concept behind how is yarn best characterized in this context. A quick elimination of partially true options helps confirm it.

Q13. Which option best describes Kubernetes?

A. Container orchestrator for Spark. B. A pure VM. C. A pure cache. D. A pure scheduler.

Select an answer to check.

Answer: Container orchestrator for Spark.

The best option here is Container orchestrator for Spark.. Modern deployment target. That is exactly the concept behind which option best describes kubernetes in this context. A quick elimination of partially true options helps confirm it.

Q14. What is the primary purpose of Kubernetes?

A. A pure VM. B. A pure cache. C. A pure scheduler. D. Container orchestrator for Spark.

Select an answer to check.

Answer: Container orchestrator for Spark.

For this question, Container orchestrator for Spark. is correct. Modern deployment target. That is exactly the concept behind what is the primary purpose of kubernetes in this context. A quick elimination of partially true options helps confirm it.

Q15. Which statement about Kubernetes is most accurate?

A. A pure cache. B. A pure scheduler. C. A pure VM. D. Container orchestrator for Spark.

Select an answer to check.

Answer: Container orchestrator for Spark.

Container orchestrator for Spark. is the correct answer here. Modern deployment target. That is exactly the concept behind which statement about kubernetes is most accurate in this context. A quick elimination of partially true options helps confirm it.

Q16. How is Kubernetes best characterized?

A. A pure VM. B. Container orchestrator for Spark. C. A pure scheduler. D. A pure cache.

Select an answer to check.

Answer: Container orchestrator for Spark.

Here, Container orchestrator for Spark. is the right choice. Modern deployment target. It fits the requirement in the prompt about how is kubernetes best characterized. A quick elimination of partially true options helps confirm it.

Q17. Which option best describes Standalone mode?

A. Pure Mesos only. B. Pure YARN only. C. Pure K8s only. D. Spark's built-in cluster manager.

Select an answer to check.

Answer: Spark's built-in cluster manager.

In this case, Spark's built-in cluster manager. is correct. Simple cluster setup. It fits the requirement in the prompt about which option best describes standalone mode. A quick elimination of partially true options helps confirm it.

Q18. What is the primary purpose of Standalone mode?

A. Pure Mesos only. B. Pure K8s only. C. Pure YARN only. D. Spark's built-in cluster manager.

Select an answer to check.

Answer: Spark's built-in cluster manager.

The best option here is Spark's built-in cluster manager.. Simple cluster setup. It fits the requirement in the prompt about what is the primary purpose of standalone mode. A quick elimination of partially true options helps confirm it.

Q19. Which statement about Standalone mode is most accurate?

A. Pure K8s only. B. Spark's built-in cluster manager. C. Pure YARN only. D. Pure Mesos only.

Select an answer to check.

Answer: Spark's built-in cluster manager.

For this question, Spark's built-in cluster manager. is correct. Simple cluster setup. It fits the requirement in the prompt about which statement about standalone mode is most accurate. A quick elimination of partially true options helps confirm it.

Q20. How is Standalone mode best characterized?

A. Pure Mesos only. B. Spark's built-in cluster manager. C. Pure K8s only. D. Pure YARN only.

Select an answer to check.

Answer: Spark's built-in cluster manager.

Spark's built-in cluster manager. is the correct answer here. Simple cluster setup. It fits the requirement in the prompt about how is standalone mode best characterized. A quick elimination of partially true options helps confirm it.

Q21. Which option best describes Mesos?

A. Standalone. B. Older cluster manager option. C. Kubernetes. D. YARN.

Select an answer to check.

Answer: Older cluster manager option.

Here, Older cluster manager option. is the right choice. Less common today. This is the most accurate statement for which option best describes mesos. A quick elimination of partially true options helps confirm it.

Q22. What is the primary purpose of Mesos?

A. YARN. B. Kubernetes. C. Older cluster manager option. D. Standalone.

Select an answer to check.

Answer: Older cluster manager option.

In this case, Older cluster manager option. is correct. Less common today. This is the most accurate statement for what is the primary purpose of mesos. A quick elimination of partially true options helps confirm it.

Q23. Which statement about Mesos is most accurate?

A. Older cluster manager option. B. Kubernetes. C. Standalone. D. YARN.

Select an answer to check.

Answer: Older cluster manager option.

The best option here is Older cluster manager option.. Less common today. This is the most accurate statement for which statement about mesos is most accurate. A quick elimination of partially true options helps confirm it.

Q24. How is Mesos best characterized?

A. Standalone. B. Kubernetes. C. Older cluster manager option. D. YARN.

Select an answer to check.

Answer: Older cluster manager option.

For this question, Older cluster manager option. is correct. Less common today. This is the most accurate statement for how is mesos best characterized. A quick elimination of partially true options helps confirm it.

Q25. Which option best describes client deploy mode?

A. Pure local. B. Cluster deploy mode. C. Driver runs on the submitting client. D. Pure standalone.

Select an answer to check.

Answer: Driver runs on the submitting client.

Driver runs on the submitting client. is the correct answer here. Useful for interactive use. This is the most accurate statement for which option best describes client deploy mode. A quick elimination of partially true options helps confirm it.

Q26. What is the primary purpose of client deploy mode?

A. Cluster deploy mode. B. Driver runs on the submitting client. C. Pure standalone. D. Pure local.

Select an answer to check.

Answer: Driver runs on the submitting client.

Here, Driver runs on the submitting client. is the right choice. Useful for interactive use. It aligns directly with what the question asks about what is the primary purpose of client deploy. The other options are either incomplete or contextually incorrect.

Q27. Which statement about client deploy mode is most accurate?

A. Pure standalone. B. Driver runs on the submitting client. C. Cluster deploy mode. D. Pure local.

Select an answer to check.

Answer: Driver runs on the submitting client.

In this case, Driver runs on the submitting client. is correct. Useful for interactive use. It aligns directly with what the question asks about which statement about client deploy mode is most. The other options are either incomplete or contextually incorrect.

Q28. How is client deploy mode best characterized?

A. Pure standalone. B. Cluster deploy mode. C. Pure local. D. Driver runs on the submitting client.

Select an answer to check.

Answer: Driver runs on the submitting client.

The best option here is Driver runs on the submitting client.. Useful for interactive use. It aligns directly with what the question asks about how is client deploy mode best characterized. The other options are either incomplete or contextually incorrect.

Q29. Which option best describes cluster deploy mode?

A. Pure local. B. Pure standalone. C. Driver runs in the cluster. D. Client mode.

Select an answer to check.

Answer: Driver runs in the cluster.

For this question, Driver runs in the cluster. is correct. Recommended for production. It aligns directly with what the question asks about which option best describes cluster deploy mode. The other options are either incomplete or contextually incorrect.

Q30. What is the primary purpose of cluster deploy mode?

A. Client mode. B. Driver runs in the cluster. C. Pure local. D. Pure standalone.

Select an answer to check.

Answer: Driver runs in the cluster.

Driver runs in the cluster. is the correct answer here. Recommended for production. It aligns directly with what the question asks about what is the primary purpose of cluster deploy. The other options are either incomplete or contextually incorrect.

Q31. Which statement about cluster deploy mode is most accurate?

A. Pure standalone. B. Driver runs in the cluster. C. Pure local. D. Client mode.

Select an answer to check.

Answer: Driver runs in the cluster.

Here, Driver runs in the cluster. is the right choice. Recommended for production. This matches the core idea being tested around which statement about cluster deploy mode is most. The other options are either incomplete or contextually incorrect.

Q32. How is cluster deploy mode best characterized?

A. Driver runs in the cluster. B. Pure standalone. C. Pure local. D. Client mode.

Select an answer to check.

Answer: Driver runs in the cluster.

In this case, Driver runs in the cluster. is correct. Recommended for production. This matches the core idea being tested around how is cluster deploy mode best characterized. The other options are either incomplete or contextually incorrect.

Q33. Which option best describes local mode?

A. Pure YARN. B. Cluster mode. C. Pure standalone. D. Run Spark in a single JVM.

Select an answer to check.

Answer: Run Spark in a single JVM.

The best option here is Run Spark in a single JVM.. Testing and dev. This matches the core idea being tested around which option best describes local mode. The other options are either incomplete or contextually incorrect.

Q34. What is the primary purpose of local mode?

A. Pure YARN. B. Run Spark in a single JVM. C. Pure standalone. D. Cluster mode.

Select an answer to check.

Answer: Run Spark in a single JVM.

For this question, Run Spark in a single JVM. is correct. Testing and dev. This matches the core idea being tested around what is the primary purpose of local mode. The other options are either incomplete or contextually incorrect.

Q35. Which statement about local mode is most accurate?

A. Cluster mode. B. Pure standalone. C. Pure YARN. D. Run Spark in a single JVM.

Select an answer to check.

Answer: Run Spark in a single JVM.

Run Spark in a single JVM. is the correct answer here. Testing and dev. This matches the core idea being tested around which statement about local mode is most accurate. The other options are either incomplete or contextually incorrect.

Q36. How is local mode best characterized?

A. Pure standalone. B. Run Spark in a single JVM. C. Pure YARN. D. Cluster mode.

Select an answer to check.

Answer: Run Spark in a single JVM.

Here, Run Spark in a single JVM. is the right choice. Testing and dev. That is exactly the concept behind how is local mode best characterized in this context. The other options are either incomplete or contextually incorrect.

Q37. Which option best describes dynamic allocation?

A. Pure retries. B. Static allocation only. C. Pure speculative. D. Add/remove executors based on load.

Select an answer to check.

Answer: Add/remove executors based on load.

In this case, Add/remove executors based on load. is correct. Cluster manager support required. That is exactly the concept behind which option best describes dynamic allocation in this context. The other options are either incomplete or contextually incorrect.

Q38. What is the primary purpose of dynamic allocation?

A. Pure speculative. B. Add/remove executors based on load. C. Pure retries. D. Static allocation only.

Select an answer to check.

Answer: Add/remove executors based on load.

The best option here is Add/remove executors based on load.. Cluster manager support required. That is exactly the concept behind what is the primary purpose of dynamic allocation in this context. The other options are either incomplete or contextually incorrect.

Q39. Which statement about dynamic allocation is most accurate?

A. Pure retries. B. Add/remove executors based on load. C. Pure speculative. D. Static allocation only.

Select an answer to check.

Answer: Add/remove executors based on load.

For this question, Add/remove executors based on load. is correct. Cluster manager support required. That is exactly the concept behind which statement about dynamic allocation is most accurate in this context. The other options are either incomplete or contextually incorrect.

Q40. How is dynamic allocation best characterized?

A. Add/remove executors based on load. B. Pure speculative. C. Static allocation only. D. Pure retries.

Select an answer to check.

Answer: Add/remove executors based on load.

Add/remove executors based on load. is the correct answer here. Cluster manager support required. That is exactly the concept behind how is dynamic allocation best characterized in this context. The other options are either incomplete or contextually incorrect.

Q41. Which option best describes external shuffle service?

A. Holds shuffle data across executor lifetimes. B. A pure cache. C. A pure broadcast. D. A pure scheduler.

Select an answer to check.

Answer: Holds shuffle data across executor lifetimes.

Here, Holds shuffle data across executor lifetimes. is the right choice. Required for dynamic allocation. It fits the requirement in the prompt about which option best describes external shuffle service. The other options are either incomplete or contextually incorrect.

Q42. What is the primary purpose of external shuffle service?

A. A pure broadcast. B. Holds shuffle data across executor lifetimes. C. A pure scheduler. D. A pure cache.

Select an answer to check.

Answer: Holds shuffle data across executor lifetimes.

In this case, Holds shuffle data across executor lifetimes. is correct. Required for dynamic allocation. It fits the requirement in the prompt about what is the primary purpose of external shuffle. The other options are either incomplete or contextually incorrect.

Q43. Which statement about external shuffle service is most accurate?

A. A pure cache. B. A pure broadcast. C. A pure scheduler. D. Holds shuffle data across executor lifetimes.

Select an answer to check.

Answer: Holds shuffle data across executor lifetimes.

The best option here is Holds shuffle data across executor lifetimes.. Required for dynamic allocation. It fits the requirement in the prompt about which statement about external shuffle service is most. The other options are either incomplete or contextually incorrect.

Q44. How is external shuffle service best characterized?

A. A pure broadcast. B. A pure cache. C. Holds shuffle data across executor lifetimes. D. A pure scheduler.

Select an answer to check.

Answer: Holds shuffle data across executor lifetimes.

For this question, Holds shuffle data across executor lifetimes. is correct. Required for dynamic allocation. It fits the requirement in the prompt about how is external shuffle service best characterized. The other options are either incomplete or contextually incorrect.

Q45. Which option best describes speculative execution?

A. Pure load balance. B. Pure retries. C. Run slow tasks on alternate executors. D. Pure caching.

Select an answer to check.

Answer: Run slow tasks on alternate executors.

Run slow tasks on alternate executors. is the correct answer here. Mitigates stragglers. It fits the requirement in the prompt about which option best describes speculative execution. The other options are either incomplete or contextually incorrect.

Q46. What is the primary purpose of speculative execution?

A. Pure load balance. B. Run slow tasks on alternate executors. C. Pure retries. D. Pure caching.

Select an answer to check.

Answer: Run slow tasks on alternate executors.

Here, Run slow tasks on alternate executors. is the right choice. Mitigates stragglers. This is the most accurate statement for what is the primary purpose of speculative execution. The other options are either incomplete or contextually incorrect.

Q47. Which statement about speculative execution is most accurate?

A. Run slow tasks on alternate executors. B. Pure retries. C. Pure caching. D. Pure load balance.

Select an answer to check.

Answer: Run slow tasks on alternate executors.

In this case, Run slow tasks on alternate executors. is correct. Mitigates stragglers. This is the most accurate statement for which statement about speculative execution is most accurate. The other options are either incomplete or contextually incorrect.

Q48. How is speculative execution best characterized?

A. Pure retries. B. Run slow tasks on alternate executors. C. Pure load balance. D. Pure caching.

Select an answer to check.

Answer: Run slow tasks on alternate executors.

The best option here is Run slow tasks on alternate executors.. Mitigates stragglers. This is the most accurate statement for how is speculative execution best characterized. The other options are either incomplete or contextually incorrect.

Q49. Which option best describes locality preferences?

A. Pure round-robin. B. Pure log. C. Random scheduling only. D. Schedule tasks near data.

Select an answer to check.

Answer: Schedule tasks near data.

For this question, Schedule tasks near data. is correct. PROCESS_LOCAL > NODE_LOCAL > RACK_LOCAL > ANY. This is the most accurate statement for which option best describes locality preferences. The other options are either incomplete or contextually incorrect.

Q50. What is the primary purpose of locality preferences?

A. Pure log. B. Random scheduling only. C. Pure round-robin. D. Schedule tasks near data.

Select an answer to check.

Answer: Schedule tasks near data.

Schedule tasks near data. is the correct answer here. PROCESS_LOCAL > NODE_LOCAL > RACK_LOCAL > ANY. This is the most accurate statement for what is the primary purpose of locality preferences. The other options are either incomplete or contextually incorrect.