AWS - Cloud Computing Fundamentals
You want to design a highly available web application on AWS that serves users worldwide with low latency. Which combination of AWS global infrastructure components should you use?
You want to design a highly available web application on AWS that serves users worldwide with low latency. Which combination of AWS global infrastructure components should you use?
hard📝 Best Practice Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Identify requirements for high availability and low latency
High availability needs multiple AZs to avoid single points of failure. Low latency worldwide needs multiple regions closer to users.Step 2: Analyze options for meeting requirements
Deploy the app in multiple regions and use multiple Availability Zones in each region uses multiple regions and AZs, covering both availability and latency. Deploy the app in multiple Availability Zones within a single region only lacks multi-region coverage. Deploy the app in a single Availability Zone in one region and use AWS CloudFront has single AZ, risking failure. Deploy the app in multiple regions but only one Availability Zone per region lacks multi-AZ redundancy.Final Answer:
Deploy the app in multiple regions and use multiple Availability Zones in each region -> Option DQuick Check:
Multi-region + multi-AZ = best availability & latency [OK]
Quick Trick: Use multiple regions and AZs for best availability and speed [OK]
Common Mistakes:
MISTAKES- Using only one region limits global reach
- Using single AZ risks downtime
- Relying on CloudFront alone doesn't ensure availability
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