Yournetwork contains two Web servers named Server1 and Server2. Both servers run Windows
Server 2012 R2.
Server1 and Seiver2 are nodes in a Network Load Balancing (NLB) cluster.The NIB cluster contains
an application named App1 that is accessed by using the URL http://app1.contoso.com.
Youplan to perform maintenance on Server1.
Youneed to ensure that all new connections to App1 are directed to Server2. The solution must not
disconnect the existing connections to Server1.
What should you run?
A.
The Stop-NlbCluster cmdlet
B.
The nlb.exe stop command
C.
The Suspend-NlbCluster cmdlet
D.
The nlb.exe suspend command
Explanation:
The Stop-NlbClusterNode cmdlet stops a node in an NLB cluster.When you use the stop the nodes
in the cluster,client connections that are already in progress are interrupted. Toavoid interrupting
active connections, consider using the -drain parameter,which allows the node to continue
servicing active connections but disables all new traffic to that node.
The given answer is INCORRECT.
We want to do maintenance on Server1. No new connection must be made, existing must NOT be disconnected.
When we do :
A) Stop-NlbCluster -> We stop the cluster. Not only a node of the cluster. Not what is asked;
B) NLB.exe stop -> This stops cluster operations on the specified cluster node. All existing connections are disconnected. Not what is asked;
C) Suspend-NlbCluster -> We suspend the complete cluster, not just the node we need; Not what is asked;
D) nlb.exe suspend -> We suspend all clustering operations on a specified node. Not what is asked.
So none of the give answers is correct. Is these where the asnwer on an actual exam, I would go for NLB.EXE suspend as it gets closest to what is asked.
But probably there will be an answer containing Stop-NlbClusterNode. This is what we need and we also need to include the -Drain option.
But answer here would be D: nlb.exe suspend
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Given answer is correct, you must use the -Drain parameter.
https://technet.microsoft.com/en-us/library/ee817115.aspx
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Stop-NLBCluster stop all of node
nlb stop is right . but must give a option host name
0
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NLB does nog have a parameter DRAIN.
It does have
– DrainStop which stops all NLB functions but drains current connections.
– Drain which disables new traffic handling for the rule whose port range contains the specified port.
Probably this question is not correct.
0
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The answer is corret.
Stop-NLBCluster must be used with -DRAIN (which allows the node to continue
servicing active connections but disables all new traffic to that node)
Syntax:
Stop-NlbCluster [[-HostName] ] [[-InterfaceName] ] [-Drain] …
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A is “Stop-NlbCluster” not “Stop-NlbClusterNode”.
Stop-NlbCluster will stop the entire cluster, also with the -Drain switch.
“You need to ensure that all new connections to App1 are directed to Server2” so the Cluster must be up with a single node.
So or it is a type error or the right answer is D “nlb.exe” .
1
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See the previous answer:
http://www.aiotestking.com/microsoft/you-need-to-ensure-that-all-new-connections-to-app1-are-directed-to-server2-11/
The right answer is Stop-NBLClusterNode
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p.s.
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0
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https://technet.microsoft.com/en-us/library/ee817115.aspx
read this
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from my 70-412 exam prep book
Using node drain
Node drain is a feature that simplifies the process of shutting a node down for maintenance.
In previous versions of Windows, if you wanted to bring a node down for maintenance, you
first needed to pause the node and then move all the clustered roles over to other nodes.
With node drain, these two steps are combined into one.
To prepare a node to be shut down for maintenance in this way, first navigate to the
Nodes container in the Failover Cluster Manager console tree. Then right-click the node you
want to shut down in the details pane, point to Pause, and then select Drain Roles
To achieve this same result by using Windows PowerShell, use the Suspend-ClusterNode
cmdlet.
0
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For those reading this far, answer is in the explanation but written wrong as an answer
It is:
Stop-NlbClusterNode
Specifically,
Stop-NlbClusterNode [[-HostName] ] [-InterfaceName ] [-Drain]
This stops the node in the cluster from being an active cluster node and drainstop means it does this after all current connections have ended. The cluster is still functional and incoming connections will go to Server2 because Server2 is still a functioning NLB node.
Not Stop-Nlbcluster or nlb.exe stop, because these stop the entire cluster from functioning. If that were the case, incoming connections would not go to Server2 because there is no mechanism in place to direct them to it.
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Its look Like the answ is RIGHT!
Becouse Stop-NlbCluster (https://technet.microsoft.com/en-us/library/ee817115.aspx) cmdlet have a two options: -HostName and -Drain
If used W/o -HostName its stops ALL nodes in cluster (all cluster). But when use -HostName Server1 it stops ONLY Server1 node
see https://technet.microsoft.com/ru-ru/library/ee817127.aspx EXAMPLE 1
so Ans is A!
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The choices for answer should be:
A. The Stop-NlbClusterNode cmdlet
B. The nlb.exe stop command
C. The Suspend-NlbClusterNode cmdlet
D. The nlb.exe suspend command
Right answer is: A. The Stop-NlbClusterNode cmdlet
The explication is right but given choices to answer are wrong!
Stop-NlbCluster
Stops all nodes of an NLB cluster.
(https://technet.microsoft.com/en-us/library/ee817115.aspx)
Suspend-NlbCluster
Suspends all nodes of an NLB cluster.
(https://technet.microsoft.com/en-us/library/ee817141.aspx)
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Same Q with different options provided….
http://www.aiotestking.com/microsoft/you-need-to-ensure-that-all-new-connections-to-app1-are-directed-to-server2-10/
Stop-NlbClusterNode
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Answer is A. Stop-Nlbcluster
The PS cmd would be Stop-nlbcluster -hostname -drain
If -hostname and -drain are omitted, then Stop-nlbcluster would stop all sessions and stop all nodes in the cluster.
https://technet.microsoft.com/en-us/library/hh801272(v=wps.630).aspx
1
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Stop-Nlbcluster -hostname specifies a cluster name not a node name.
1
0
All answers are wrong.
The commands to drain and stop a particular node in a NLB cluster are:
Stop-NlbClusterNode -Drain
or
Suspend-ClusterNode -Drain
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