CLF-C02 Practice Question 83: Consumption Model
AWS Certified Cloud Practitioner (CLF-C02) · Test 9 · question 3 of 10
A company's development and test environments are used only about eight hours a day on weekdays, but they run around the clock. The team schedules them to stop outside working hours and start again each morning, so it pays only for the hours the environments are actually needed. Which design principle of the AWS Well-Architected Framework cost optimization pillar does this apply?
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Answer:
Adopt a consumption model means paying only for the computing resources you need, and increasing or decreasing usage based on business requirements rather than elaborate forecasting. AWS uses this exact example: development and test environments are typically used only eight hours a day during the work week, so stopping them when not in use can save about 75% (40 hours instead of 168 hours a week).
Option B, measure overall efficiency, is about measuring a workload's business output against the costs of delivering it, to track the gains from increasing output and reducing cost. Option C, analyze and attribute expenditure, is about identifying the usage and cost of systems accurately so IT costs can be attributed to individual workload owners. Option D, implement Cloud Financial Management, is about investing time and resources in building an organizational capability for cost efficiency, through knowledge, programs and processes.
Reference: Cost optimization design principles