Which command is used to configure the Numbering Plan Area (Area Code)?

The command that correctly configures the Numbering Plan Area (Area Code) is "gen/system>npa=XXX." This command follows the syntax used for configuring parameters in a system's general setup, where NPA stands for Numbering Plan Area. By specifying "npa=XXX," an administrator can directly set the area code by replacing "XXX" with the desired numerical code.

This approach reflects standard practices in many configuration environments, where commands are structured to provide clarity and direct functionality. The command succinctly defines the primary purpose—configuring the area code, signifying that it is a straightforward and recognized method within the system's available command set.

Other commands may appear similar, but they do not directly correspond to the task of setting the Numbering Plan Area, making them less suitable for this specific configuration task.