ANS-C01 Question 400
Select 3Your company is deploying a large-scale video streaming service to deliver live content to millions of users globally. The service currently uses unicast to send video streams to each individual user. However, this approach is consuming excessive bandwidth and increasing delivery costs. Which of the following methods can help reduce bandwidth utilization while maintaining the service's scalability and performance?
- A
Implement multicast streaming for internal networks within AWS using Amazon VPC Lattice.
- B
Use Amazon CloudFront to cache and distribute video streams closer to end users.
- C
Convert the streaming architecture to a peer-to-peer network for distributing video streams.
- D
Enable AWS Direct Connect to create dedicated network connections to reduce latency.
- E
Optimize video encoding and compression to reduce the size of video streams.
Show answer and explanation
Correct answers: A, B, E
Explanation
Reducing bandwidth utilization for a large-scale video streaming service can be achieved by implementing multicast for internal network efficiency, utilizing Amazon CloudFront for global content delivery optimization, and optimizing video encoding to reduce stream sizes. These approaches effectively balance bandwidth savings, scalability, and performance. Peer-to-peer networks and AWS Direct Connect are not the best fit for this scenario, as they either lack integration with AWS-native services or do not address bandwidth optimization directly.
- A. Correct.
Multicast is efficient for internal networks where the same data needs to be sent to multiple recipients, as it reduces duplicate traffic. While AWS does not natively support multicast across the internet, Amazon VPC Lattice can facilitate multicast-like behavior for internal applications.
- B. Correct.
Amazon CloudFront reduces bandwidth utilization by caching video content at edge locations closer to end users, minimizing the need to repeatedly fetch the same content from the origin.
- C. Incorrect.
While peer-to-peer networks can reduce server load, they do not directly align with AWS-native solutions or reduce bandwidth utilization in a controlled and scalable manner for global video delivery.
- D. Incorrect.
AWS Direct Connect provides a dedicated network link for reduced latency and consistent performance, but it does not inherently reduce bandwidth utilization as it focuses on connectivity rather than traffic optimization.
- E. Correct.
Optimizing video encoding and compression reduces the size of video streams, which directly lowers bandwidth consumption without impacting video quality significantly.