IntermediateBehavioral
5 min
Driving a Cost Optimization Initiative
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Interview Question
Give an example of how you identified cloud cost waste and optimized it. What was the impact?
Key Points to Cover
- Uses cost explorer/tags to find waste
- Partners with owners to plan changes
- Implements rightsizing or auto-scaling
- Quantifies savings clearly
Evaluation Rubric
Uses data effectively25% weight
Collaborates with stakeholders25% weight
Implements optimization steps25% weight
Communicates savings impact25% weight
Hints
- 💡Think: idle resources, storage tiers.
Common Pitfalls to Avoid
- ⚠️Failing to use tagging effectively, leading to a lack of visibility into cost drivers.
- ⚠️Not involving stakeholders early, resulting in resistance to change or missed opportunities for understanding usage patterns.
- ⚠️Focusing solely on compute costs and neglecting other areas like storage or data transfer.
- ⚠️Implementing changes without proper testing, leading to performance degradation or downtime.
- ⚠️Not establishing ongoing monitoring and reporting mechanisms, causing waste to re-emerge.
Potential Follow-up Questions
- ❓How did you sustain the savings?
- ❓What trade-offs did you make?
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