Which vSphere feature will prevent virtual machines from starting in a cluster if there are not enough redundant compute resources?

Which vSphere feature will prevent virtual machines from starting in a cluster if there are not enough redundant compute resources?

• Admission tolerance control
• Admission control
• Fault tolerance
• Startup control 

 

EXPLANATION

vCenter Server uses Admission Control to ensure that sufficient resources are available in a cluster to provide failover protection and to ensure that virtual machine resource reservations are respected. It can be set at the Host, Resource Pool, or Cluster Level (known as vSphere HA Admission Control). 
Read more here: https://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.avail.doc_50%2FGUID-53F6938...