What are the two DTP interface modes mentioned in configuration?

The correct answer identifies two key modes of Dynamic Trunking Protocol (DTP), which are "dynamic auto" and "dynamic desirable."

In the context of DTP, these modes define how a switch port negotiates trunking.

• Dynamic Auto: When a port is set to this mode, it will not actively seek to form a trunk but is willing to negotiate if the other side of the connection is set to a mode that can initiate the trunking process (such as dynamic desirable). This mode effectively makes the port a passive participant in the trunk negotiation process.

• Dynamic Desirable: When a port is set to this mode, it actively tries to negotiate trunking. It sends DTP messages to the other end of the connection to encourage trunk formation. If the other side is capable of forming a trunk (either in dynamic auto or dynamic desirable modes), the trunk will be established.

These two modes highlight the mechanisms DTP uses to negotiate trunk links dynamically, allowing for flexibility in network designs where trunk links need to be established without manual configuration.

The other choices describe modes that either do not exist within DTP or are combinations of static and dynamic configurations that do not represent the options available for DTP negotiations.