Which command allows you to enter into the session-helper sub menu?

The command that allows you to enter into the session-helper sub menu is "config system session-helper." This command is correct because it properly specifies the entire path required to navigate to the session-helper configuration context within the FortiGate's command line interface (CLI).

When using the FortiGate CLI, commands require a structured approach to reach specific configuration areas. The "config system session-helper" command indicates that you are entering the configuration mode of the system settings and specifically targeting the 'session-helper' settings. This allows you to add, modify, or delete session helpers that enhance how the device handles various session types for firewall policies.

Navigating the CLI correctly is essential for proper configuration and troubleshooting. Having a clear understanding of the command structure fosters more precise control over the device's features and functions, leading to effective network management.