正解:C
The task requires configuring NAT (Network Address Translation) to allow all users in the subnet 10.2.2.0/24 to access the Internet using a single public IP address, which is 209.165.201.1, for all external communication.
This is typically done using PAT (Port Address Translation), also known as NAT overload, which allows multiple private IP addresses to be mapped to a single public IP address but with different port numbers.
The correct command set would include defining an access list that specifies the local subnet, configuring the router's inside interface that connects to the local network with ip nat inside, configuring the outside interface with ip nat outside, and then specifying the NAT rule that uses PAT by referring to the access list and indicating overload.
Option C is likely correct because it includes these elements:
* An access control list (ACL) that permits traffic from the 10.2.2.0/24 subnet.
* The ip nat inside command applied to an internal interface.
* The ip nat outside command applied to an external interface.
* A NAT rule that matches traffic permitted by the ACL and translates it using the IP address of the external interface with overload enabled.