An administrator is troubleshooting basic network connectivity issues.
Which two scenarios are potential issues that this administrator might face? (Choose two.)

A.
The vSwitch is not attached to the correct physical network.

B.
The portgroup is not configured to use correct VLAN.

C.
Traffic shaping is configured incorrectly.

D.
Jumbo frames is configured incorrectly.

Explanation:
Common network connectivity issues can happen anytime during the operation. The vSwitch is not attached to the correct physical network or the portgroup is not
configured to use correct VLAN might be some of the causes that admin has to face during network connectivity.
http://blogs.vmware.com/kb/2013/02/troubleshooting-network-teaming-problems-in-esxesxi.html