Which type of digital data transmission does the RS232C standard specify?

Which type of digital data transmission does the RS232C standard specify?

• A. Balanced
• B. Fiber Optic
• C. Parallel
• D. Serial

Answer: (D)

RS232C defines how digital data is sent over a serial interface. In serial transmission, bits are sent one after the other along a single data path (with ground and control lines as needed), rather than all at once across many wires as in parallel transmission. RS232C uses single-ended signaling, with voltages relative to ground (typically negative voltages for aLogic 1 and positive voltages for aLogic 0), and data is usually transmitted asynchronously with start and stop bits. This contrasts with balanced (differential) signaling, fiber optic media, or parallel transmission. So the correct type is serial transmission.

RS232C defines how digital data is sent over a serial interface. In serial transmission, bits are sent one after the other along a single data path (with ground and control lines as needed), rather than all at once across many wires as in parallel transmission. RS232C uses single-ended signaling, with voltages relative to ground (typically negative voltages for aLogic 1 and positive voltages for aLogic 0), and data is usually transmitted asynchronously with start and stop bits. This contrasts with balanced (differential) signaling, fiber optic media, or parallel transmission. So the correct type is serial transmission.