City employees complain about separate passwords for the portal, email, and a line-of-business web app. Which identity benefit describes signing in once to use multiple applications?
Select an answer to reveal the explanation.
Short Explanation
SSO is one key for many doors—sign in once, open portal, mail, and that LOB app without a password parade. Storage redundancy and Archive tiers are about data, not logins. Data Box ships terabytes; it is not SSO.
Full Explanation
Single sign-on (SSO) lets users authenticate once and gain access to multiple applications without repeatedly entering credentials, improving usability and reducing password fatigue. In Microsoft cloud scenarios, SSO is commonly enabled through Microsoft Entra ID integrations with apps. Storage redundancy, access tiers, and Data Box address data durability, cost tiers, and physical transfer—not authentication convenience. AZ-900 expects SSO to be identified as authenticate-once-for-many-apps.