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You run AWS Trusted Advisor and see a recommendation to delete unused Elastic IP addresses. What is the expected impact after deleting them?

medium📝 Predict Output Q4 of 15
AWS - Cost Optimization
You run AWS Trusted Advisor and see a recommendation to delete unused Elastic IP addresses. What is the expected impact after deleting them?
AIncreased network latency
BReduced monthly charges for unused Elastic IPs
CLoss of all running EC2 instances
DAutomatic backup of deleted IPs
Step-by-Step Solution
Solution:
  1. Step 1: Understand Elastic IP billing

    AWS charges for Elastic IP addresses that are allocated but not associated with running instances.
  2. Step 2: Effect of deleting unused Elastic IPs

    Deleting unused Elastic IPs stops these charges, reducing monthly costs without affecting running instances.
  3. Final Answer:

    Reduced monthly charges for unused Elastic IPs -> Option B
  4. Quick Check:

    Deleting unused IPs reduces cost = A [OK]
Quick Trick: Unused Elastic IPs cost money; deleting saves cost [OK]
Common Mistakes:
  • Thinking deletion affects running instances
  • Expecting network performance changes

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