Which term describes moving data through a single channel in only one direction?

Which term describes moving data through a single channel in only one direction?

• A. Duplexing
• B. Half duplex
• C. Simplex
• D. Full duplex

Answer: (C)

Moving data through a single channel in only one direction is simplex. In a simplex arrangement, information flows from the transmitter to the receiver with no path for a response on that same channel. This is different from full duplex, where two-way communication happens simultaneously, and half duplex, where two-way communication is possible but not at the same time. Duplexing is the general concept of two-way communication modes and includes both full and half duplex, so it doesn’t describe one-way transmission by itself. An everyday example is a traditional TV broadcast, where the signal goes from the station to you with no return path.

Moving data through a single channel in only one direction is simplex. In a simplex arrangement, information flows from the transmitter to the receiver with no path for a response on that same channel. This is different from full duplex, where two-way communication happens simultaneously, and half duplex, where two-way communication is possible but not at the same time. Duplexing is the general concept of two-way communication modes and includes both full and half duplex, so it doesn’t describe one-way transmission by itself. An everyday example is a traditional TV broadcast, where the signal goes from the station to you with no return path.