A: Approximately 6.1 GB to 7.2 GB, depending on language and included CU level.
Manually download .NET 4.8 from Microsoft and install it before running Exchange setup. exchange server 2019 download 64 bit iso
Install-WindowsFeature Server-Media-Foundation, NET-Framework-45-Core, ManagementTools, Remote-Server-Administration-Tools, Web-Server, Web-WebServer, Web-Common-Http, Web-Default-Doc, Web-Dir-Browsing, Web-Http-Errors, Web-Static-Content, Web-Health, Web-Http-Logging, Web-Log-Libraries, Web-Request-Monitor, Web-Http-Tracing, Web-Performance, Web-Stat-Compression, Web-Dyn-Compression, Web-Security, Web-Filtering, Web-Basic-Auth, Web-Client-Auth, Web-Digest-Auth, Web-Windows-Auth, Web-App-Dev, Web-Net-Ext45, Web-ISAPI-Ext, Web-ISAPI-Filter, Web-Mgmt-Console, Web-Mgmt-Compat, Web-Metabase, Web-Lgcy-Mgmt-Console, Web-Lgcy-Scripting, Web-WMI, NET-Framework-45-ASPNET, NET-WCF-Services45, NET-WCF-HTTP-Activation45, NET-WCF-TCP-Activation45, NET-WCF-Pipe-Activation45, Desktop-Experience, Failover-Clustering A: Approximately 6
