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Your network contains two Web servers named Server1 and Server2. Both servers run Windows Server 2012 R2.
Server1 and Server2 are nodes in a Network Load Balancing (NLB) cluster. The NLB cluster contains an application named App1 that is accessed by using the
URL http://app1.contoso.com.
You plan to perform maintenance on Server1.
You need 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 Set-NlbCluster cmdlet

B. The Set-NlbClusterNode cmdlet

C. The Stop-NlbCluster cmdlet

D. The Stop-NlbClusterNode cmdlet

E. The Suspend-NlbClusterNode cmdlet

F. 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. To avoid 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.
-Drain <SwitchParameter>
Drains existing traffic before stopping the cluster node. If this parameter is omitted, existing traffic will be dropped.
References: Stop-NlbClusterNode

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