Youhave a failover cluster named Cluster1 that contains four nodes. All of the nodes run Windows
Server 2012 R2.
Youneed 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
Its D Invoke-Causcan
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No it’s not. That just checks localy on the list of updates for all cluster nodes.
Given answer is correct.
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JF is correct :
The given answer is correct
Invoke-Causcan:
https://technet.microsoft.com/en-us/library/hh847228.aspx
Add-CauClusterRole:
https://technet.microsoft.com/en-us/library/hh847235.aspx
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They don’t mention anything about installing the updates, they only want you to contact the WSUS server immediately to get a list of available updates
“You need to force every node in Cluster1 to contact immediately the Windows Server Update Services (WSUS) server on your network for updates”
When you run the invoke-causcan cmdlet you will get a list with all the available updates that you can install. To install them you’ll run invoke-caurun.
So I tend to stick with invoke-causcan on this one…
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Answer D is correct. This will provide a list of updates and you can run this even without first running A
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Hmm still not sure about this though. The question does not say the servers need to apply updates , just that they need to check with WSUS.
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I’d also go for the Invoke command, because question asks about “immediate contact…for updates”, not about “immediate contact…to install updates”.
typical WTF question 🙁
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Do any of the powershell options actually force the nodes to contact WSUS ?
As we aren’t asked to install the CAU feature, a simple “wuauclt /detectnow” on each node would do
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Question states “CONTACT immediately WSUS for updates” (not Install)
Installation of the CAU role is NOT required as it is installed as part of the FoC role.
Quoting from:
https://technet.microsoft.com/en-us/library/hh831367(v=ws.11).aspx
“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 (…)
(you can read all 3 dots, or even better the whole article)
To summarise
-CAU is already installed
-Just “contact” (No installation) is needed
ergo IMHO I will go with:
ANSWER “D” Invoke-CauScan
listed here:
https://technet.microsoft.com/en-us/library/jj134213(v=ws.11).aspx
detail’d here:
https://technet.microsoft.com/itpro/powershell/windows/cluster-aware-updating/invoke-causcan
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Let’s not over complicate this folks. It’s D: https://technet.microsoft.com/itpro/powershell/windows/clusterawareupdating/invoke-causcan
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ThisGuy gets it.
Answer: D
A is not required to perform D. We are not setting up schedules we are querying WSUS/Windows Update via a manual step.
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