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A company wants to optimize a web app's performance globally. Which combination of AWS services best achieves this?

hard📝 Application Q8 of 15
AWS - Architecture Best Practices
A company wants to optimize a web app's performance globally. Which combination of AWS services best achieves this?
AAWS Lambda with single EC2 instance
BAmazon RDS with manual scaling
CAmazon CloudFront with Auto Scaling groups
DAmazon S3 with fixed-size EC2 instances
Step-by-Step Solution
Solution:

  1. Step 1: Identify global performance needs

    Global users need low latency and scalable backend.

  2. Step 2: Choose services

    CloudFront delivers content globally fast; Auto Scaling adjusts backend capacity automatically.

  3. Final Answer:

    Amazon CloudFront with Auto Scaling groups -> Option C

  4. Quick Check:

    Global performance = CloudFront + Auto Scaling [OK]
Quick Trick: Combine CloudFront and Auto Scaling for global speed [OK]
Common Mistakes:
  • Manual scaling is slow
  • Single EC2 can't scale well
  • Fixed-size instances limit performance

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