When upgrading the Node Manager, the option to start automatically the service after the silent upgrade is in the form '--start <service name>' while the interactive upgrade has a "Start Windows service: Yes | No".
It would be more coherent to have then same answer type in the interactive and silent upgrade modes and require less maintenance when it comes to scripting.
Having <service name> imposes a change in the script for each new version, while a '--start-service <true|false>' could remain unchanged.