1994 – SMS, 2007 – SCCM & MECM – 2019
Management – Asset, Client & Administartive Features
Sites – Central Administration Site Server, Primary Site Server & Secondary Site Server
CAS only manages PS & need 2012 or greater server.
PS is mandatory & SS for different network.
SS DB replicate with PS DB.
SQL Server Express is free.
SCCM Site Roles >>>
Management Point : Between SCCM Server & clients & can be installed in a seperate server too.
Distrbution Point : Content storage & client will download content from nearest DP & can be installed on win client (win 10/11) too.
Software Update Point : Bridge between SCCM & WSUS & this is not mandatory role.
SMS Provider : SCCM use WMI & DB use SQL, so SMS is the translator.
Asset Intelligence Synchronization Point : To categorize the software & optional.
Endpoint Protection Point : To manage windows defender & optional.
Reporting Services Point : Reports from Database to SCCM & should be installed on Database server.
Service Connection Point : To upgrade SCCM & to communicate with Azure and this is also optional.
State Migration Point : Capture client & Resotre, (Ex-upgrade win 7 to win 11 with users file restoring) and optional.
Reference : https://mitesp.udemy.com/course/microsoft-sccm-training/learn/lecture/13287430#announcements