Which strategy is described under usage reduction by redesigning?

• A. Migrating all workloads to on-prem
• B. Scaling vertically to larger instances all the time
• C. Scaling horizontally during peak hours, then scaling back during slower hours
• D. Keeping resources running 24/7

Answer: (C)

The idea being tested is elastic, demand-driven resource use achieved by redesigning the system to scale in response to load. Scaling out horizontally during peak hours and then stepping back down when demand drops embodies this: you add capacity only when needed to maintain performance, and you reduce it during slower periods to eliminate paying for idle resources. This reduces overall usage and cost while keeping service levels.

Moving all workloads on-premises doesn’t inherently reduce usage and can reduce flexibility. Always scaling vertically to larger instances wastes capacity if that enlarged capacity isn’t needed all the time. Keeping resources running 24/7 wastes resources during off-peak times.