Which standard defines how a printer manufacturer should implement a bidirectional parallel port?
1. >>IEEE 1284
2. IEEE 1394
3. IEEE 802.11b
4. IEEE 802.1x
Explanation : The IEEE 1284 standard defines guidelines for implementing bidirectional communication across a parallel port. Bidirectional communication is a technology used by printers to allow a printer to send data to the operating system, such as a notification that the paper tray needs to be refilled. IEEE 1284 supports higher transfer rates than a traditional parallel cable, but not as fast as Universal Serial Bus (USB).
IEEE 1394 (FireWire) is a high-speed connection standard for devices like digital cameras and video cameras. It is not a standard for defining a parallel printer port.
IEEE 802.1x is a security standard for wireless networks. It is not a standard for defining a parallel printer port.
IEEE 802.11b is a wireless networking standard. It is not a standard for defining a parallel printer port.
Objective: Printers and Scanners
