The correct answer is: C. computer to front-end processor communication
A computer/peripheral-device configuration is a basic configuration used in a data communication network. In this configuration, a computer is connected to one or more peripheral devices, such as printers, scanners, and storage devices.
A computer-to-computer communication is a basic configuration used in a data communication network. In this configuration, two computers are connected to each other directly or through a network.
Communication through a data switch is a basic configuration used in a data communication network. In this configuration, a data switch is used to connect two or more computers or peripheral devices.
A front-end processor is a computer that is used to control the input and output of a main computer. It is not a basic configuration used in a data communication network.