What type of transmission is used when video is delivered from one point in the network to another in a one-to-one fashion?

Unicast transmission is a method used when video, or any type of data, is sent from one specific point to another specific point in a network. This involves a unique sender and a unique receiver, ensuring a dedicated connection for the delivery of the content. In a unicast scenario, each recipient receives their own individual stream of data directly from the source. This method is commonly used for applications like one-to-one video calls and streaming services where each user gets a separate link to content, thus enabling tailored, direct communication or media delivery.

In contrast, broadcast transmission sends data from one point to multiple points simultaneously, which can lead to bandwidth inefficiencies when only a selected group of users needs access to the content. Multicast operates by sending data to a group of designated receivers rather than individual unique addresses, which can help optimize the network for group communications. Anycast allows data to be sent to the nearest node in a group but does not ensure a specific recipient, making it different from the point-to-point nature of unicast. Understanding these distinctions is crucial for implementing efficient network strategies depending on the communication needs.