When a switch interface is configured as a routed port, which configuration command is typically used?

When configuring a switch interface as a routed port, the command "no switchport" is used to set the interface to operate in Layer 3 mode instead of Layer 2. By default, switch interfaces are in Layer 2 mode and participate in switching frames. However, when you want the interface to route IP packets, it needs to be transitioned to a routed port.

Using "no switchport" effectively disables the Layer 2 switching functionality on that port, allowing it to handle Layer 3 traffic and assign an IP address to the interface. This is particularly useful in situations where the switch is used to route traffic between different VLANs or network segments, thereby facilitating inter-VLAN routing.

The other commands listed do not serve this specific function. For instance, "switchport access" is used to configure an interface as a Layer 2 access port that connects to end devices in a specific VLAN. "interface routed" is not a valid Cisco IOS command, and "no access" doesn't accurately remove the Layer 2 functionality from an interface. Hence, the use of "no switchport" is the correct command to configure a routed port on a switch interface.