Which type of transmission allows for one-way communication without a reply?

The correct answer is broadcast. Broadcast transmission is a method of communication where data is sent from one source to multiple destinations without expecting any response or confirmation from the receivers. This one-way communication is commonly used in scenarios such as television and radio broadcasting, where a signal is transmitted to a wide audience without interaction.

In contrast, full-duplex transmission allows for simultaneous two-way communication, enabling both parties to send and receive data at the same time. Point-to-point transmission refers to a dedicated connection between two devices, allowing for two-way communication as well. Link is a generic term referring to connections or interfaces and does not specifically indicate one-way communication. Thus, broadcast clearly defines a one-way communication model suitable for the scenario presented.