You have a failover cluster named Cluster1 that contains four nodes. All of the nodes run Windows
Server 2012 R2.
You need to schedule the installation of Windows updates on the cluster nodes.
Which tool should you use?
A.
The Add-CauClusterRolecmdlet
B.
TheWuauclt command
C.
TheWusa command
D.
The Invoke-CauScancmdlet
Explanation:
The Invoke-CauScancmdlet performs a scan of cluster nodes for applicable updates and returns a list of
the initial set of updates that would be applied to each node in a specified cluster.
http://technet.microsoft.com/en-us/library/hh847235(v=wps.620).aspx
http://technet.microsoft.com/en-us/library/cc720477(v=ws.10).aspx
http://support.microsoft.com/kb/934307
http://technet.microsoft.com/en-us/library/hh847228(v=wps.620).aspx
Answer should be A.
To enable self-updating mode, the CAU clustered role must also be added to the failover cluster. To
do this by using the CAU UI, under Cluster Actions, use the Configure Self-Updating Options action.
Alternatively, run the Add-CauClusterRole Windows PowerShell cmdlet.
Note: The process for installing service packs and hotfixes on Windows Server 2012 differs from the
process in earlier versions. In Windows Server 2012, you can use the Cluster-Aware Updating (CAU)
feature. CAU automates the software-updating process on clustered servers while maintaining
availability.
Cluster-Aware Updating Overview
Sources:
https://docs.microsoft.com/en-us/powershell/module/clusterawareupdating/add-cauclusterrole?view=win10-ps
https://www.briefmenow.org/microsoft/which-tool-should-you-use-894/
https://docs.microsoft.com/en-us/windows-server/failover-clustering/cluster-aware-updating
Answer B (wuauclt.exe): is the Windows Update Agent. You can use it to check for updates on a single system.
Answer C (wusa.exe) is the Windows update standalone installer which allows you to run a standalone windows update .msu file.
Answer D (Invoke-CAUScan) only queries for updates that would be installed. The question asks about scheduling installs which can be done when you add the CAU Cluster Role.
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