Which ports are used in the multi-master system to avoid errors? A. Bidirectional port B. Tridirectional port C. Multi directional port D. Unidirectional port

A tridirectional port is a port that can transmit, receive, and send data. This is not necessary in a multi-master system, as the devices can communicate with each other without the need for a third party.

A multi-directional port is a port that can transmit, receive, and send data in multiple directions. This is not necessary in a multi-master system, as the devices can communicate with each other in a single direction.

A unidirectional port is a port that can only transmit data. This is not ideal in a multi-master system, as it would prevent the devices from communicating with each other.