ExpertMedium1 markMultiple Choice
AWS SAA-C03 · Question 55 · Domain 4.2: Compute Cost Optimization
A company runs a batch processing job every night. The job takes 3 hours to complete. The workload is fault-tolerant and can be interrupted and resumed without issues. What is the MOST cost-effective EC2 pricing model for this workload?
A company runs a batch processing job every night. The job takes 3 hours to complete. The workload is fault-tolerant and can be interrupted and resumed without issues. What is the MOST cost-effective EC2 pricing model for this workload?
Answer options:
A.
On-Demand Instances
B.
Reserved Instances
C.
Spot Instances
D.
Dedicated Hosts
How to approach this question
Match 'fault-tolerant' and 'can be interrupted' to Spot Instances.
Full Answer
C.Spot Instances✓ Correct
Spot Instances
Amazon EC2 Spot Instances let you take advantage of unused EC2 capacity in the AWS cloud. They are available at up to a 90% discount compared to On-Demand prices, making them ideal for fault-tolerant, flexible workloads.
Common mistakes
Choosing Reserved Instances for a job that only runs 3 hours a day.
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