Single Sign-On (SSO) allows your employees to log in using their existing company credentials (Google Workspace, Microsoft Entra ID/Azure, Okta) instead of creating a new username and password. It ties access to your central employee directory.
Data Residency refers to the physical geographic location where your data is stored. Laws like GDPR (Europe) and CCPA (California) often mandate that citizen data must strictly be stored/processed within their borders or in countries with adequate protection.
A Backup Strategy is the protocol for copying and archiving data so it can be restored in case of data loss (hack, corruption, or accidental deletion). The "3-2-1 Rule" is the industry standard: 3 copies of data, on 2 different media, with 1 offsite.