Which term describes a logical grouping of information sent over a transmission medium?

A frame describes a logical grouping of information sent over a transmission medium, specifically at the data link layer of the OSI model. Frames are essentially units of data that encapsulate packets for transmission, including headers and trailers that provide necessary addressing and error-checking information. This ensures that the data is correctly sent to the right devices within the same local area network (LAN) and can be properly understood upon receipt.

The other terms refer to units of data within different layers of the OSI model but do not specifically address the concept of a logical grouping at the level of the transmission medium. Packets operate at the network layer, segments refer to units at the transport layer (related to TCP), and datagrams pertain to the network layer as well but often refer specifically to UDP packets. Each of these plays a distinct role in the data communication process but does not capture the essence of the grouping in the context of a transmission medium in the same way a frame does.