Interface Fa0/1 is connected to a PC. Fa0/2 is a trunk link to another switch. All other ports are unused

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dynamic-routing

#1

Refer to the exhibit. Interface Fa0/1 is connected to a PC. Fa0/2 is a trunk link to another switch. All other ports are unused. Which security best practice did the administrator forget to configure?

  1. Disable autonegotiation and set ports to either static access or static trunk.
  2. Change the native VLAN to a fixed VLAN that is distinct from all user VLANs and to a VLAN number that is not VLAN 1.
  3. Configure all unused ports to a ‘black-hole’ VLAN that is not used for anything on the network.
  4. All user ports are associated with VLANs distinct from VLAN 1 and distinct from the ‘black-hole’ VLAN.