In terms of interface mode, which option indicates a switch that can operate as either an access or a trunk?

A switch interface operating in dynamic auto mode is designed to negotiate with the connected device to determine whether to function as an access port or a trunk port. This mode allows flexibility in the configuration, enabling the switch to automatically adjust the interface based on the capabilities of the device on the other end of the link.

When in dynamic auto mode, if the other device is configured as a trunk or can operate as such, the interface will transition to trunk mode. If the other device is an access port or does not support trunking, the interface will remain in access mode. This negotiation process adheres to the Dynamic Trunking Protocol (DTP), which facilitates dynamic configuration changes based on the link partner's role.

Operating in this mode is useful in environments where devices may be interconnected with varied configurations and ensures adaptability in maintaining network configurations.