SOA-C02 Question 311
Select 3Your company runs a data processing workload that processes large datasets nightly. The workload requires high compute power but can tolerate interruptions and resume processing from the last checkpoint. The team wants to optimize costs by utilizing EC2 Spot Instances. Which factors should you evaluate to determine if this workload is suitable for EC2 Spot Instances?
- A
Evaluate if the workload can tolerate interruptions and has a mechanism to save progress.
- B
Determine the historical Spot Instance price trends and availability for the required instance types.
- C
Check if the workload has strict, non-negotiable deadlines for completion.
- D
Evaluate whether the workload can automatically scale based on the availability of Spot Instances.
- E
Ensure the workload requires consistent and predictable compute availability at all times.
Show answer and explanation
Correct answers: A, B, D
Explanation
To qualify a workload for EC2 Spot Instances, it is important to assess its tolerance for interruptions and ability to handle variable compute capacity. Workloads that can save progress, dynamically scale, and are flexible in completion time are better suited for Spot Instances. Additionally, understanding historical Spot pricing and availability trends can assist in selecting appropriate instance types to minimize interruptions.
- A. Correct.
Correct: Spot Instances are ideal for workloads that can tolerate interruptions and have mechanisms like checkpointing or state-saving to resume progress without issues.
- B. Correct.
Correct: Reviewing historical Spot price trends and instance availability helps ensure you select instance types that are less likely to be interrupted due to demand.
- C. Incorrect.
Incorrect: Workloads with strict, non-negotiable deadlines are not suitable for Spot Instances because Spot Instances can be interrupted at any time.
- D. Correct.
Correct: Workloads that can scale dynamically with the availability of Spot Instances are better suited for cost optimization using Spot Instances.
- E. Incorrect.
Incorrect: Spot Instances are not suitable for workloads requiring consistent and predictable compute availability, as they can be interrupted at short notice.