Which resource management technique can be used to relieve a network bottleneck caused by a
virtual machine with occasional high outbound network activity?

A.
Convert the switch from a vSphere Standard Switch to a vSphere Distributed Switch.

B.
Create a new portgroup for the virtual machine and enable traffic shaping.

C.
Apply traffic shaping to the other virtual machines in the same port group.

D.
Apply traffic shaping to the virtual machine with high activity.

Explanation:
http://www.vmware.com/files/pdf/vsphere-vnetwork-ds-migration-configuration-wp.pdf