CLF-C02 Question 149
Select 3An organization is planning to host a globally distributed application using AWS. They want to ensure low latency for users across different regions while maintaining fault tolerance. Which elements of AWS's global infrastructure would help achieve this objective?
- A
AWS Regions
- B
Availability Zones
- C
Edge Locations
- D
AWS Outposts
- E
Local Zones
Show answer and explanation
Correct answers: A, B, C
Explanation
AWS's global infrastructure is designed to provide low latency and fault tolerance. AWS Regions enable global distribution and redundancy, Availability Zones provide fault tolerance within a region, and Edge Locations reduce latency by caching content closer to users. Together, these elements ensure a robust, globally distributed application experience.
- A. Correct.
AWS Regions are geographically isolated areas that allow you to deploy applications closer to users, which helps reduce latency and improve fault tolerance.
- B. Correct.
Availability Zones are physically separate data centers within a region that provide redundancy and fault tolerance for applications.
- C. Correct.
Edge Locations are part of the AWS Content Delivery Network (CDN) and help deliver content with low latency to users around the globe.
- D. Incorrect.
AWS Outposts are on-premises installations of AWS infrastructure and are not part of the global infrastructure used for latency optimization and fault tolerance.
- E. Incorrect.
Local Zones are extensions of AWS Regions that are closer to end users in specific locations, but they are not as broadly applicable as Regions, Availability Zones, or Edge Locations in addressing global latency and fault tolerance.