Amazon RDS for SQL Server Supports Disabling Old Versions of TLS and Ciphers
Starting today, Amazon RDS for SQL Server supports enabling or disabling certain security protocols and ciphers. By creating a custom DB parameter group and associating it with your DB instance, you can disable or enable older versions of Transport Layer Security (TLS) such as TLS 1.0 and 1.1. You can also disable or enable ciphers such as the RC4 stream cipher.
Source:: Amazon AWS