A company streams live sporting events to millions of concurrent viewers worldwide with minimal buffering. Which CloudFront configuration suits live video delivery?
Show answer and explanation
Answer: B
MediaPackage is the origination and packaging service for live video: it ingests the live feed, segments it into adaptive-bitrate formats such as HLS, DASH, and CMAF with a configurable DVR window, and CloudFront then distributes those segments from edge caches to millions of simultaneous viewers. This is the AWS reference pattern for large-scale live streaming.
Why the other options are wrong
- A. An S3 origin suits stored video-on-demand assets; a live stream has no static objects sitting in S3 to cache while the event runs.
- C. An ALB routes HTTP traffic to compute targets; it cannot segment a live feed into adaptive-bitrate formats for players.
- D. Lambda@Edge is not a video transcoder or packager; slicing a live stream at the edge on every request would be slow, costly, and brittle.
Exam tip. Live streaming = MediaLive capture, MediaPackage packaging, CloudFront delivery.