What command allows interaction with NetSim devices via CLI in Cisco NSO?

The command that allows interaction with NetSim devices via the CLI in Cisco NSO is the one that utilizes the "ncs_cli" utility. This command is specifically designed to connect to the Network Services Orchestrator (NSO) environment in a streamlined and efficient manner.

Using the "ncs_cli" command with the options "-C" and "-u admin" provides a straightforward method for accessing the command-line interface of the NSO. The "-C" option indicates that the command is running in a "conf" mode, meaning it is ready to accept configuration commands directly. The "-u admin" specifies the username for authentication, allowing users with administrative privileges to perform various tasks.

This command helps facilitate quick and efficient management of network devices within the NSO, enabling operators to interact with the system and execute necessary commands without having to navigate through multiple layers of abstraction or interfaces.

Other commands mentioned do not align with this function, which is why they would not be used for interacting with NetSim devices in this context.