SAA-C03 Question 323
Select 3A global e-commerce company needs to improve the performance and availability of its website for users worldwide. They want to reduce latency for static content delivery, accelerate dynamic content, and ensure high availability even during regional failures. Which combination of services should they use?
- A
Amazon CloudFront for content delivery and caching
- B
AWS Global Accelerator to route traffic to the nearest healthy endpoint
- C
Amazon S3 for hosting static content directly without additional services
- D
AWS Transit Gateway to interconnect VPCs in multiple regions
- E
Amazon Route 53 for DNS-based traffic routing
Show answer and explanation
Correct answers: A, B, E
Explanation
To optimize performance and availability for a global audience, the company should use Amazon CloudFront for caching and delivering static content, AWS Global Accelerator for routing traffic to the nearest healthy endpoint for dynamic content, and Amazon Route 53 for DNS-based intelligent routing. These services together ensure low latency, high availability, and efficient traffic management. S3 alone cannot provide caching or acceleration benefits, and Transit Gateway is irrelevant to this use case.
- A. Correct.
Amazon CloudFront is a highly effective content delivery network (CDN) that caches static assets (e.g., images, videos, JavaScript) at edge locations to reduce latency and improve performance for end users.
- B. Correct.
AWS Global Accelerator routes user traffic to the nearest healthy application endpoint using the AWS global network, improving performance and availability for dynamic and non-cacheable content.
- C. Incorrect.
While Amazon S3 can host static content, it does not provide caching, latency optimization, or global acceleration capabilities without being combined with CloudFront.
- D. Incorrect.
AWS Transit Gateway is used for interconnecting VPCs and on-premises networks, not for optimizing global content delivery or improving user latency.
- E. Correct.
Amazon Route 53 is a scalable DNS service useful for intelligently routing end-user traffic to the closest or most appropriate endpoint, complementing CloudFront and Global Accelerator.