Which two conditions prevent the application of a host profile to an ESXi host? (Choose two)
A.
The host has multiple profiles attached
B.
The host has not been placed into maintenance mode
C.
The host is running virtual machines
D.
The host is an ESXi host
For support of answer B.. VSphere 5.x pubs
http://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.install.doc_50%2FGUID-F1F7ACCA-BE85-4AD3-A32C-0C9400A94421.html
Apply a Profile from the Host Profiles View
You can apply a profile to a host from the Host Profiles main view.
Prerequisites
The profile must be attached to the host and the host must be in maintenance mode before a profile is applied to it.
Procedure
1 In the Host Profiles main view, select the profile you want to apply to the host.
2 Select the Hosts and Clusters tab.
The list of attached hosts are shown under Entity Name.
3 Click Apply Profile.
In the Profile Editor, you might be prompted to enter the required parameters needed to apply the profile.
4 Enter the parameters and click Next.
5 Continue until all the required parameters are entered.
6 Click Finish.
For C. you can’t have a host in maintenance mode with running VMs period. If it’s a drs cluster, entering maintenance mode will hang until all VMs are migrated via vmotion off. If they can’t be moved, the maintenance mode will time out and the request will stop and the host will remain operational.