You are employed as a network administrator at contoso.com.
contoso.com has a single Active Directory domain named contoso.com.
All servers on the Contoso.com network have Windows Server 2012 R2 installed.
Contoso.com has two servers,named server1 and server2 which are configured in a two-node fail
over cluster.
You are currently configuration the quorum settings for the cluster.
You want to make use of a quorum mode that allows each node to vote if it is available and in
communication.
Which of the following is the mode you should use?
A.
Node Majority
B.
Node and Disk Majority
C.
Node and File Share Majority
D.
No Majority:Disk Only
Explanation:
A)
Allows each node to vote
B)
Allows each node and a disk witness to vote
C)
Allows each node and a File share witness to vote
D)
Allows one node with a specified disk to have quorum
http://technet.microsoft.com/en-us/library/cc770620(v=ws.10).aspx
It should be B. The number of servers in the cluster is even (2) so if one of them goes down, the cluster goes down. This means you need a witness disk to vote and make the 50% + 1 to keep the cluster up if one of the servers goes down.
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Agreed, Node Only quorum is not recommended for clusters with an even number of nodes:
https://technet.microsoft.com/en-gb/library/cc731739.aspx
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The question isn’t asking what the smart thing to do is. It’s asking what mode gives nodes a vote. Since it doesn’t mention storage, quorum disks, or best practices… I’d have to say A.
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1
Agree.
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Even though I’d vote for B, C is just as valid as B. Then mayhaps A is Microsft’s awkwardly expected answer… after all, we know all too well that Microsoft’s exams demand Microsoft’s answers, not necessarily the “right” answers.
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QWE, HELL YOU ARE RIGHT AS HELL!
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I agree with @MountSwolemore
“You want to make use of a quorum mode that allows each node to vote if it is available and in
communication.”
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I agree with qwe. The right answers are B or C, but the MS-right answer is A despite the two node cluster deployment. Don’t ask 😉
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B, A is too mad. From https://technet.microsoft.com/en-us/library/jj612870(v=ws.11).aspx:
As a general rule when you configure a quorum, the voting elements in the cluster should be an odd number. Therefore, if the cluster contains an even number of voting nodes, you should configure a disk witness or a file share witness. The cluster will be able to sustain one additional node down. In addition, adding a witness vote enables the cluster to continue running if half the cluster nodes simultaneously go down or are disconnected.
A disk witness is usually recommended if all nodes can see the disk.
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