Oracle Cloud Infrastructure 2021 Architect Associate — Question 37

You have a high-demand web application running on Oracle Cloud Infrastructure (OCI). Your tenancy administrator has setup a schedule based autoscaling policy on instance pool with initial size of 5 instances for the application.
Policy 1:

Target pool size: 10 instances -
Execution time: 8:30 a.m. on every Monday through Friday, in every month, in every year
Cron expression: 0 30 8 ? * MON-FRI *
Which statement accurately explains the goal of this policy?

Answer options

• A. Goal: A recurring monthly schedule. On all days of the month, set the initial pool size to 5 instances. At 8.30 a.m., on every day of the month, scale out to 10 instances.
• B. Goal: A recurring daily schedule. On weekday mornings at 8.30 a.m., scale out to 10 instances.
• C. Goal: A one-time schedule with only one scaling out event. At 8:30 a.m., on December 31, 2021, scale the instance pool to 10 instances from 5.
• D. Goal: A recurring weekly schedule. On all days of the week at 8.30 a.m., scale out the pool to 10 instances from the initial size of 5.

Correct answer: B

Explanation

The correct answer is B because the cron expression specifies execution at 8:30 a.m. on weekdays only, which aligns with a daily scaling schedule during the workweek. Options A, C, and D are incorrect as they misinterpret the frequency and timing of the scaling actions defined in the policy.