AWS - Cost Optimization
You manage a fleet of EC2 instances with varying CPU usage. Which approach best applies right-sizing to reduce costs without hurting performance?
You manage a fleet of EC2 instances with varying CPU usage. Which approach best applies right-sizing to reduce costs without hurting performance?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand right-sizing best practice
Right-sizing means starting small and adjusting based on real usage data to avoid waste.Step 2: Evaluate options for cost and performance balance
Start with smallest instance types, monitor usage, then scale up as needed follows best practice by starting small, monitoring, and scaling up only if needed.Final Answer:
Start with smallest instance types, monitor usage, then scale up as needed -> Option AQuick Check:
Start small + monitor + scale = right-sizing [OK]
Quick Trick: Start small, watch usage, then adjust size [OK]
Common Mistakes:
- Always picking largest instance wastes money
- Changing types randomly causes instability
- Terminating all instances ignores workload needs
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