A technician, Peter, has a wired switch in a conference room for guests. In which of the following ways could Peter restrict the network to only six devices at a time, with minimum management effort? (Select TWO).
A. Disable the extra Ethernet ports on the switch
B. Configure DHCP for six addresses maximum
C. Enable Spanning Tree protocol
D. Create an access control list for each new PC
E. Configure DNS to only resolve six IP addresses F: Add each guest to the MAC filter list