AIncorrect
Reliability
This is incorrect. The Reliability pillar addresses recovery from failures and service continuity.
Eliminating wasteful spending is a cost-focused concern, not a reliability concern.
An initiative to identify and stop unused resources, choose appropriate instance sizes, and eliminate wasteful spending maps to which pillar of the AWS Well-Architected Framework?
1 / 1
Select an answer
CorrectD
Explanation
Identify which pillar covers initiatives to reduce wasteful spending.
- 1「identify and stop unused resources」Eliminating idle resources = Cost Optimization
- 2「eliminate wasteful spending」Delivering value at the lowest cost = Cost Optimization
- 3「appropriate instance sizes」Right-sizing is a core practice of Cost Optimization
BIncorrect
Sustainability
This is incorrect. The Sustainability pillar focuses on reducing energy consumption and environmental impact. Stopping unused resources is a common means, but the goal here is eliminating wasteful spending (cost), not reducing environmental load. That objective belongs to Cost Optimization.
CIncorrect
Operational Excellence
This is incorrect. The Operational Excellence pillar covers automation of operations, monitoring, and continuous improvement.
Eliminating cost waste is a Cost Optimization concern.
DCorrect
Cost Optimization
Correct. The Cost Optimization pillar covers eliminating unnecessary resources, right-sizing (selecting the appropriate instance size), and optimizing pricing models to deliver required value at the lowest cost. Initiatives to eliminate wasteful spending are central to this pillar.
Key Takeaway
'Idle resource elimination,' 'right-sizing,' and 'wasteful spending' all map to the Cost Optimization pillar. When the same means (e.g., stopping unused resources) serves the goal of reducing environmental impact, it maps to Sustainability instead. Distinguish pillars by purpose: Reliability (failures), Operational Excellence (operations improvement), Sustainability (environment).