AWS Certified Cloud Practitioner

Explanation

Spot Instances are the most cost-effective option for interruptible batch processing workloads because:

• Significant Cost Savings: Spot Instances offer up to 90% discount compared to On-Demand Instances
• Interruptible Nature: Since your jobs can be interrupted and resumed, they are perfect for Spot Instances which can be reclaimed by AWS with a 2-minute warning
• Batch Processing: Spot Instances are ideal for fault-tolerant, flexible applications like batch processing, big data analytics, and containerized workloads
• Resume Capability: Your workload's ability to resume from interruptions makes it well-suited for Spot Instance interruptions

Why not other options:

• On-Demand Instances: More expensive and not interruptible
• Reserved Instances: Require 1-3 year commitment, better for steady-state workloads
• Dedicated Instances/Dedicated Hosts: Most expensive options, provide physical isolation
• Savings Plans: Commitment-based discount model, but Spot Instances still offer better savings for interruptible workloads

For batch processing that can handle interruptions, Spot Instances provide the optimal balance of cost-effectiveness and functionality.