CLF-C02 Question 151
Select 3Your company operates a global application that requires low-latency content delivery to users worldwide. You are tasked with designing the architecture for this solution by leveraging AWS services. How do AWS Regions, Availability Zones, and edge locations work together to meet this requirement?
- A
Regions provide isolated locations for deploying applications close to end-users, while Availability Zones within Regions offer redundancy for high availability.
- B
Availability Zones are used to replicate data across multiple Regions for disaster recovery and provide low-latency content delivery.
- C
Edge locations are part of the Amazon CloudFront content delivery network (CDN) and cache frequently accessed data to reduce latency for users.
- D
Edge locations are used to deploy compute resources for applications to ensure fault tolerance and disaster recovery.
- E
Regions are interconnected by a low-latency global network to ensure fast data transfer between them.
Show answer and explanation
Correct answers: A, C, E
Explanation
AWS Regions, Availability Zones, and edge locations work together to ensure global availability, redundancy, and low-latency delivery of content. Regions provide isolated environments for deploying applications close to users, Availability Zones within Regions ensure high availability and fault tolerance, and edge locations are used to cache content for low-latency delivery via the Amazon CloudFront CDN. Additionally, Regions are interconnected by a low-latency global network for fast data transfer.
- A. Correct.
Correct: Regions are geographic areas that provide isolated locations for deploying applications closer to end-users, and Availability Zones within Regions enable redundancy and high availability.
- B. Incorrect.
Incorrect: Availability Zones do not replicate data across Regions; they exist within a single Region to provide redundancy and fault tolerance. They are not used for low-latency content delivery.
- C. Correct.
Correct: Edge locations are used in Amazon CloudFront, which is a content delivery network (CDN) that caches frequently accessed content to reduce latency for users.
- D. Incorrect.
Incorrect: Edge locations are not used to deploy compute resources or for disaster recovery. Their primary purpose is to cache content and improve latency for end-users.
- E. Correct.
Correct: AWS Regions are interconnected by a low-latency global network, enabling fast data transfer and communication between them.