A network technician installs Windows Server 2012 R2 Standard on a server named Server1.
A corporate policy states that all servers must run Windows Server 2012 R2 Enterprise.
You need to ensure that Server1 complies with the corporate policy.
You want to achieve this goal by using the minimum amount of administrative effort.
What should you perform?

A.
a clean installation of Windows Server 2012 R2

B.
an upgrade installation of Windows Server 2012 R2

C.
online servicing by using Dism

D.
offline servicing by using Dism

Explanation:
A)
Not least effort
B)
Not least effort
C)
dism /online /set-edition
D)
offline would be less ideal and more workex: DISM /online /SetEdition:ServerEnterprise/ProductKey:489J6-VHDMP-X63PK-3K798-CPX3YWindows Server 2008
R2/2012 contains a command-line utility called DISM (Deployment Image Servicing and
Management tool). This tool has many features, but one of those features is the ability to upgrade
the edition of Windows in use. Note that this process is for upgrades only and is irreversible. You
cannot set a Windows image to a lower edition. The lowest edition will not appear when you run the
/Get- TargetEditions option.
If the server is running an evaluation version of Windows Server 2012 R2 Standard or Windows
Server 2012 R2 Datacenter, you can convert it to a retail version as follows:
If the server is a domain controller, you cannot convert it to a retail version. In this case, install an
additional domain controller on a server that runs a retail version and remove AD DS from the
domain controller that runs on the evaluation version. From an elevated command prompt,
determine the current edition name with the command DISM /online /Get-CurrentEdition. Make
note of the edition ID, an abbreviated form of the edition name. Then run DISM /online /SetEdition:<edition ID> /ProductKey:XXXXXXXXXX-XXXXX-XXXXXXXXXX/AcceptEula, providing the
edition ID and a retail product key.
The server will restart twice.