AWS Certified Solutions Architect – Professional — Question 65

A user is running a critical batch process which runs for 1 hour and 50 mins every day at a fixed time. Which of the below mentioned options is the right instance type and costing model in this case if the user performs the same task for the whole year?

Answer options

• A. Instance store backed instance with spot instance pricing.
• B. EBS backed instance with standard reserved upfront instance pricing.
• C. EBS backed scheduled reserved instance with partial instance pricing.
• D. EBS backed instance with on-demand instance pricing.

Correct answer: D

Explanation

The correct answer is D because on-demand instance pricing is ideal for tasks that run for specific durations without the need for long-term commitment. The other options involve reserved pricing models that wouldn't be cost-effective for a daily task that runs for less than two hours.