How do you configure a static route with a specified administrative distance?

To configure a static route with a specified administrative distance, the correct command is "ip route destination mask next-hop AD." This command is part of the command-line interface in Cisco's IOS and is used to establish a static route in a router's routing table.

In this context, "ip route" initiates the command for defining a static route. The following parameters specify the destination network and subnet mask, which define the route's target, while the next hop identifies the next router or IP address that packets should be forwarded to. Finally, the administrative distance (AD) is an integer that defines the trustworthiness of the route; a lower number means a more preferred route. By including it within this command, the static route can be configured to manage the preference level compared to other routes learned through various routing protocols or other static routes.

The other options either do not align with Cisco IOS syntax for static route configuration or omit essential components. The presence of "ip route" is critical; therefore, commands missing this specific syntax would not be valid within Cisco's routing configuration context.