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You are the enterprise administrator for a company named Contoso, Ltd.
The network consists of one Active Directory domain named contoso.com.
You have a Microsoft Exchange Server 2007 organization named Contoso. All users log on to their computers by using credentials identical to their email addresses.
The company plans to change its name to A. Datum Corporation and modify all user e-mail addresses to include a new adatum.com domain name.
You need to enable all users to log on to their computers by using the new domain name. The solution must not disrupt existing applications on the network.
What should you do first?
A. Use the Active Directory domain Rename Tool to rename the domain to adatum.com.
B. Use the DNS Management Console to create a new forward lookup zone named adatum.com.
C. Create an alternative user principal name (UPN) suffix of adatum.com.
D. Create a new accepted domain named adatum.com in the Exchange Server 2007 organization.
Correct Answer: C
Explanation/Reference:
Explanation:
To ensure that all the network users should be able to log on to their computers by using the new email id credentials without affecting the existing applications on the network, you need to create an alternative user principal name (UPN) suffix of ExamKing.com. The UPN name that looks like an email address is the deprecation of NetBIOS domain names and "User logon name (pre-
usernames (referred to in Active Directory Users and Computers as 2000)"). These are (slowly) being replaced by what ADU&C now calls "User logon
Windows
name", in the format of an email address. These logon names are stored in Active Directory. It has a format of: username@upn-suffix. Therefore you just create an alternative user principal name (UPN) suffix of ExamKing.com, you can achieve the desired results.
Reference: The User Principle Name and You
http://theessentialexchange.com/blogs/michael/archive/2007/11/13/the-user-principle-name-and- you.aspx
Reference: Implementing User Principle Name Suffix
http://books.google.co.in/books?id=eo3Kj3JVql8C&pg=PA162&lpg=PA162&dq=alternative+user+ principal+name+(UPN)+suffix+&source=web&ots=AwIOUicASN&sig=RE2Wfzx9IMf0cm1TpQSor- 4NdnU&hl=en