Microsoft Azure Security Technologies AZ-500 — Question 48

Your network contains an on-premises Active Directory domain named corp.contoso.com. You have an Azure subscription named Sub1 that is associated to an Azure Active Directory (Azure AD) tenant named contoso.com. You sync all on-premises identities to Azure AD. You need to prevent users who have a givenName attribute that starts with TEST from being synced to Azure AD. The solution must minimize administrative effort. What should you use?