4. Resource Group Architecture : 4.2 Network Resources : 4.2.1 I/O Controls
   
4.2.1 I/O Controls
vCloud Director offers the following controls to guard against the misuse of resources by consumers:
*Quotas for running and stored virtual machines determine how many virtual machines each user in the organization can store and power on in the organization’s virtual datacenters. The quotas act as the default for all new users added to the organization.
*Limits for resource-intensive operations prevents consumers from affecting all users in an organization and provide a defense against denial-of-service attacks.
*Limit the number of simultaneous VMRC connections for performance or security reasons.