Final answer:
The correct PowerShell cmdlet to configure VM Monitoring for the DHCPClient service on VM42 is 'Add-ClusterVMMonitoredItem -VirtualMachine "VM42" -Service DHCPClient'.
Step-by-step explanation:
To correctly configure VM Monitoring for the DHCPClient service on a VM named VM42, you would use the following PowerShell cmdlet:
Add-ClusterVMMonitoredItem -VirtualMachine "VM42" -Service DHCPClient
This cmdlet adds a service or application to be monitored for a specified virtual machine within a failover cluster. The correct usage is specifying the virtual machine name with the -VirtualMachine parameter and the service to be monitored with the -Service parameter.