You have two servers named Server1 and Server2 that run Windows Server 2012
R2.Server1 and Server2 are part of a workgroup.
On Server1, you add Server2 to Server Manager.
When you attempt to connect to Server2 from Server Manager, you receive the following
error message: “Credentials not valid.”
You need to ensure that you can manage Server2 from Server1 by using Server Manager on
Server1.
What should you do?
A.
On Server 2, run the Configure-SmRemotingcmdlet.
B.
On Server 1, run the Set-NetFirewallRulecmdlet.
C.
On Server 1, run the Set-Item cmdlet.
D.
On Server 2, install the Remote Server Administration Tools (RSAT).
Explanation:
To enable Server Manager remote management by using Windows PowerShell
On the computer that you want to manage remotely, do one of the following to open a
Windows PowerShell session with elevated user rights.
On the Windows desktop, right-click Windows PowerShell on the taskbar, and then click Run
as Administrator.
On the Windows Start screen, right-click Windows PowerShell, and then on the app bar,
click Run as Administrator.
Type the following, and then press Enter to enable all required firewall rule exceptions.
Configure-SMRemoting.exe –enable
Correct answer is: “C”
On the computer that is running Server Manager, add the workgroup server name to the TrustedHosts list.
To add a computer name to an existing list of trusted hosts, add the Concatenate parameter to the command. For example, to add the Server01 computer to an existing list of trusted hosts, use the following command
Set-Item wsman:\localhost\Client\TrustedHosts -Concatenate -Force
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Source?
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A is correct.
https://technet.microsoft.com/en-us/library/Hh921475.aspx
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After some research i agree that it is C.
Explanation: https://social.technet.microsoft.com/Forums/windowsserver/en-US/0141f7bd-caa4-4290-a2b4-54ff54b937d6/server-2012-server-manager-winrm-negotiate-authentication-error?forum=winserver8gen
Source from the person whom explained: https://technet.microsoft.com/en-us/library/hh831453.aspx
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C is correct – A is not correct for one thing – it says Credentials Not Valid therefore we assume that connection was estabilished correctly and all firewall exceptions are done, WinRM is running etc. It only fails to authenticate user. Therefore you can either add computer to trusted hosts. In domain environment you would add user to remote management group
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is C
Add and manage servers in workgroups
Although adding servers that are in workgroups to Server Manager might be successful, after
they are added, the Manageability column of the Servers tile—on a role or group page that
includes a workgroup server—can display Credentials not valid errors that occur while trying to
connect to or collect data from the remote, workgroup server.
To add remote workgroup servers to Server Manager
On the computer that is running Server Manager, add the workgroup server name to the
TrustedHosts list. This is a requirement of NTLM authentication. To add a computer name to an
existing list of trusted hosts, add the Concatenate parameter to the command. For example, to
add the Server01 computer to an existing list of trusted hosts, use the following command.
Set-Item wsman:\localhost\Client\TrustedHosts Server01 -Concatenate -Force
https://technet.microsoft.com/en-us/library/hh831453.aspx
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I agree with JJ after reading same technet post
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