A: Yes! SQL Server 2016, 2017, 2019, 2022 can set database compatibility level to 100. This emulates the 2008 R2 behavior without the security risks. Test thoroughly.
He checked the box for the Database Engine Services. He configured the instance name, sticking with the default MSSQLSERVER to keep things simple for the creaky application connectors. Then came the authentication modes. Mixed Mode. He typed in a password for the 'sa' account—a password that would make a security auditor weep, but it was the only thing the legacy app understood. sql server 2008 r2 standard edition 64 bit iso
Note: SQL Server 2008 R2 reached end of mainstream support; use only if required for legacy systems and ensure network isolation and backups. A: Yes
Database Engine Configuration: