Amazon Exam SAA-C03 Topic 2 Question 58 Discussion

Actual exam question for Amazon's SAA-C03 exam

Question #: 58
Topic #: 2

A solutions architect needs to optimize a large data analytics job that runs on an Amazon EMR cluster. The job takes 13 hours to finish. The cluster has multiple core nodes and worker nodes deployed on large, compute-optimized instances.

After reviewing EMR logs, the solutions architect discovers that several nodes are idle for more than 5 hours while the job is running. The solutions architect needs to optimize cluster performance.

Which solution will meet this requirement MOST cost-effectively?

AIncrease the number of core nodes to ensure there is enough processing power to handle the analytics job without any idle time.

BUse the EMR managed scaling feature to automatically resize the cluster based on workload.

CMigrate the analytics job to a set of AWS Lambda functions. Configure reserved concurrency for the functions.

DMigrate the analytics job core nodes to a memory-optimized instance type to reduce the total job runtime.

Show Suggested Answer

Suggested Answer: B

EMR managed scaling dynamically resizes the cluster by adding or removing nodes based on the workload. This feature helps minimize idle time and reduces costs by scaling the cluster to meet processing demands efficiently.

Option A: Increasing the number of core nodes might increase idle time further, as it does not address the root cause of underutilization.

Option C: Migrating the job to Lambda is infeasible for large analytics jobs due to resource and runtime constraints.

Option D: Changing to memory-optimized instances may not necessarily reduce idle time or optimize costs.

AWS Documentation Reference:

EMR Managed Scaling

by Yvonne at Apr 06, 2025, 12:57 PM

Limited Time Offer

25%

Off

Get Premium SAA-C03 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Currently there are no comments in this discussion, be the first to comment!