The Principle Disadvantage of VLAN "Membership by Port Group" Is

Multiple Choice

The principle disadvantage of VLAN "membership by port group" is that ________.

A) it requires switches to examine portions of the MAC frame above the MAC layer causing a performance impact
B) VLAN membership must be assigned initially
C) it is relatively easy to configure
D) the network manager must reconfigure VLAN membership when an end system moves from one port to another