You have a failover cluster named Cluster1 that contains four nodes. All of the nodes run Windows
Server 2012 R2.
You need to force every node in Cluster1 to contact immediately the Windows Server Update
Services (WSUS) server on your network for updates.
Which tool should you use?
A.
The Add-CauClusterRole cmdlet
B.
The Wuauclt command
C.
The Wusa command
D.
The Invoke-CauScan cmdlet
Explanation:
The Add-CauClusterRole cmdlet adds the Cluster-Aware Updating (CAU) clustered role that provides
the self-updating functionality to the specified cluster. When the CAU clustered role has been added
to a cluster, the failover cluster can update itself on the schedule that is specified by the user,
without requiring an external computer to coordinate the cluster updating process.
Incorrect:
Not B. The wuauclt utility allows you some control over the functioning of the Windows Update
Agent. It is updated as part of Windows Update.
The following are the command line for wuauclt.
Option Description
/a /ResetAuthorization
Initiates an asynchronous background search for applicable updates. If Automatic Updates is
disabled, this option has no effect.
/r /ReportNow
Sends all queued reporting events to the server asynchronously.
/? /h /help
Shows this help information.
Not D.
The Invoke-CauScan cmdlet 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.
Note: The Invoke-CauRun cmdlet performs a scan of cluster nodes for applicable updates and installs
those updates via an Updating Run on the specified cluster.Add-CauClusterRole
http://technet.microsoft.com/en-us/library/hh847235(v=wps.620).aspx
This one I believe is D
The Invoke-CauScan cmdlet
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see explanation for Invoke-CauScan – does not download updates.
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Correct Answer: D
If you adds the Cluster-Aware Updating (CAU) clustered role you provide self-updating functionality to a specified cluster.
After that, using the Invoke-CauScan will 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.
You can tell the cluster then to update. But this is NOT asked here. They just want to “Contact WSUS for updates”…
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
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I think it is D as well, the question says that we already have a failover cluster and this link https://technet.microsoft.com/en-GB/library/hh831367.aspx says that CAU is automatically installed when Failover Clustering is installed, so we wouldn’t need to install it again.
How do I install CAU?
——————————————————————————–
CAU is included with all Windows Server 2012 R2 and Windows Server 2012 editions. A CAU installation is seamlessly integrated into the Failover Clustering feature. CAU is installed as follows:
•When Failover Clustering is installed on a cluster node, the CAU Windows Management Instrumentation (WMI) provider is automatically installed.
•When Failover Clustering tools are installed on a server or client computer, the CAU Windows PowerShell cmdlets are automatically installed.
•When the Failover Clustering UI is installed on a server or client computer, the CAU Windows PowerShell cmdlets and the CAU UI are automatically installed.
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CAUupdate role does come with the install , but you still have to turn it on , so the answer is A.
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joe says:
July 26, 2015 at 5:09 pm
I created a 1 node cluster, did not configure anything else (so CAU was not configured/installed after creating it)
Ran invoke-causcan -clustername cluster01 and it came back with a list of updates for the node that had been added to the cluster.
So the answer must be D
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If you use invoke-causcan, you will need additional invoke-cauRUN cmdlet otherwise it’s just a list.
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It says contact the wsus (so getting the list is enough) not install the actual updates.
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I correct answer is “D = invoke-causcan”. as mentioned in question that “You need contact immediately for updates” and if we run invoke-causcan it will give the initial updates information.
Whereas in the option “A = Add-CauClusterRole cmdlet” it will check for auto-update on scheduled time (not immediately) and moreover question says to Just to contact immediately the Windows Server Update Services (WSUS).They didn’t even mentioned about the installation of updates.
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the simple fact that the question says “contact” NOT “download” immediately says to me the option is to INVOKE!
The ADD command would suggest the cluter / CUA needs configuring, which it dosent!
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