What occurs when multiple clients order the same video-on-demand (VOD) movie session?

In video-on-demand (VOD) scenarios, when multiple clients order the same movie, the system typically establishes a separate unicast stream for each client. This means that each viewer is provided with their own dedicated stream of the content, allowing them to control their viewing experience independently, including pausing, rewinding, or fast-forwarding without affecting other viewers.

This approach ensures that clients do not experience delays or interruptions due to network congestion that could occur if a shared stream was used. Additionally, separate unicast streams maximize the reliability and quality of the viewing experience since each client receives a direct connection to the server hosting the content.

While other options might describe streaming methods such as shared streams or multicast, these do not align with the typical method used for delivering VOD content where individual control and high-quality experiences are paramount.