HOTSPOT
Your network contains an on-premises Active Directory forest named contoso.com.
The forest contains the following domains:
✑ Contoso.com
✑ East.contoso.com
The forest contains the users shown in the following table.
The forest syncs to an Azure Active Directory (Azure AD) tenant named contoso.com as shown in the exhibit. (Click the Exhibit tab.)
For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point.
Answer: 
Explanation:
Box 1: Yes
The UPN of user1 is user1@contoso.com so he can authenticate to Azure AD by using the username user1@contoso.com.
Box 2: No
The UPN of user2 is user2@east.contoso.com so he cannot authenticate to Azure AD by using the username user2@contoso.com.
Box 3: No
The UPN of user3 is user3@fabrikam.com so he cannot authenticate to Azure AD by using the username user3@contoso.com.