Amazon Web Services AWS Certified Data Engineer Data-Engineer-Associate Question # 21 Topic 2 Discussion

[Reference:Amazon EC2 Compute Optimized Instances, Managed Scaling: The EMR cluster's scaling is currently managed between 1 and 5 nodes, so changing the instance type will leverage the current scaling strategy but optimize it for the workload., Alternatives Considered:, A (Increase task nodes to 10): Increasing the number of task nodes would increase costs without necessarily improving performance. Since memory usageis low, the bottleneck is more likely the CPU, which compute-optimized instances can handle better., B (Memory optimized instances): Memory-optimized instances are not suitable since the current job is CPU-bound, and memory usage remains low (under 30%)., D (Reduce scaling cooldown): This could marginally improve scaling speed but does not address the need for cost optimization and improved CPU performance., References:, Amazon EMR Cluster Optimization, Compute Optimized EC2 Instances, ]