What is the effect of issuing a switchport access vlan 20 command on the Fa0/18 port of a switch that does not have this VLAN in the VLAN database?
- The command will have no effect on the switch.
- VLAN 20 will be created automatically.*
- An error stating that VLAN 20 does not exist will be displayed and VLAN 20 is not created.
- Port Fa0/18 will be shut down.