フリー問題

問題文

A team is weighing whether to translate one VLAN identifier into another on a switch that already carries several other Layer 2 features, and reads the list of what such translation does not work with. Which set does the documentation name?

選択肢

1. A private VLAN, the form of the spanning tree that gives each VLAN an instance of its own, a filter applied to a port or a VLAN in the outgoing direction, and the mode that returns frames on the interface they arrived by.
2. A routed interface raised on the same VLAN, the form of the spanning tree that gives each VLAN an instance of its own, a filter applied to a VLAN in the outgoing direction, and the protocol that shares VLAN membership.
3. A private VLAN, the form of the spanning tree that gives each VLAN an instance of its own, a filter applied to a port or a VLAN in the outgoing direction, and the protocol that shares VLAN membership across trunks.
4. A private VLAN, the form of the spanning tree that maps ranges of VLANs onto instances, a filter applied to a port or a VLAN in the incoming direction, and the protocol that shares membership across trunks.