ANS-C01 Question 399
Select 2Your company is streaming live video content to thousands of users across multiple regions, and the current setup is causing high bandwidth utilization and increased costs. Which of the following methods can you use to reduce bandwidth utilization effectively for this use case?
- A
Implement Amazon CloudFront to cache and deliver content closer to users.
- B
Switch from unicast to multicast for video streaming delivery.
- C
Use AWS Direct Connect to establish a dedicated network connection to user locations.
- D
Enable edge-optimized endpoints in Amazon API Gateway.
- E
Configure Amazon S3 Transfer Acceleration for faster uploads to S3.
Show answer and explanation
Correct answers: A, B
Explanation
Reducing bandwidth utilization in a large-scale streaming scenario can be achieved by leveraging caching mechanisms like Amazon CloudFront and by switching to multicast delivery for video streams. CloudFront reduces the load on the origin server by caching frequently accessed content at edge locations, and multicast optimizes bandwidth by sending a single stream to multiple users instead of individual streams. AWS Direct Connect, API Gateway edge-optimized endpoints, and S3 Transfer Acceleration, while useful for other purposes, do not address the specific challenge of bandwidth optimization in this scenario.
- A. Correct.
Amazon CloudFront is a content delivery network (CDN) that caches content at edge locations, reducing bandwidth usage by delivering content closer to users and minimizing repetitive data transfer from the origin.
- B. Correct.
Switching to multicast for video streaming is an efficient way to reduce bandwidth usage when delivering the same data stream to multiple users, as it avoids sending duplicate data over the network.
- C. Incorrect.
While AWS Direct Connect reduces latency and provides a dedicated network connection, it does not inherently reduce bandwidth utilization for streaming content delivery.
- D. Incorrect.
Edge-optimized endpoints in API Gateway improve latency for API requests but are not designed to reduce bandwidth utilization for video streaming or content delivery.
- E. Incorrect.
Amazon S3 Transfer Acceleration is used to speed up uploads to S3 buckets but is unrelated to reducing bandwidth utilization for content delivery or streaming.