You are discussing virtual networking with a colleague. She asks you which type of virtual switch
supports the advanced networking option called Port Mirroring. Which of the following is the
correct answer?

A.
Extended virtual switch

B.
Distributed virtual switch

C.
Standard virtual switch

D.
Enterprise virtual switch

Explanation:
http://blogs.vmware.com/vsphere/2011/08/vsphere-5-new-networking-features-portmirroring.html