A: Technically yes, but not recommended. Drivers may be missing, and software expecting client OS features may fail. Use it only for a lab environment.
A: It is a digital fingerprint. If your downloaded file’s SHA-1 does not start with 4cb967d8 , the file is corrupted or has been altered (potentially with malware). en-windows-server-2019-x64-dvd-4cb967d8
To verify the file using PowerShell: