The provided answer is correct. (Not mandatory, mandatory, mandatory, mandatory) Ref Prerequisites of PSM health check https://docs.cyberark.com/Product-Doc/OnlineHelp/PAS/Latest/en/Content/PSM/psm_healthcheck.htm

1-PSM service installed on Windows 2008 R2 (NOT Mandatory) 2-PSM service installed on Windows 2016, Windows 2019, or Windows 2022(Mandatory) 3-Web Server (IIS) role is installed(Mandatory) 4-The web server is defined with a site binding that is configured to HTTPs using a valid SSL certificate. (Mandatory) Not mandatory Mandatory Mandatory Mandatory https://docs.cyberark.com/pam-self-hosted/Latest/en/Content/PSM/psm_healthcheck.htm DR

Mandatory services: PSM service installed on Windows 2016 or Windows 2019 Web Server (IIS 8.5) role is installed A valid SSL certificate is installed on the Web Server

PSM server installing on Windows 2008 R2, Windows 2012 R2, or Windows 2016 - Not Mandatory - Windows 2008 R2 is not supported. PSM server installing on Windows 2012 R2, Windows 2016, or Windows 2019 - Mandatory A valid SSL certificate installed on the Webserver - Not Mandatory WebServer (IIS 8.5) role is installed - Not Mandatory -Not installed