フリー問題

問題文

An operator opens a brand-new switch, lists the VLANs, and finds one already there whose numeric identifier is 1 and which every port belongs to before any command is typed. The operator wants its name. On a stacked-tag link elsewhere the provider's equipment ignores one of the two tags entirely and passes it through untouched, and the operator wants the name of that ignored one. Which pair names the pre-existing VLAN and that ignored tag?

選択肢

1. Junos ends up assigning that reserved VLAN, and this operator separately strips that inner header too
2. Junos ends up assigning that default VLAN, and this operator separately strips that stacked header too
3. Junos ends up assigning that reserved VLAN, and this operator separately strips that stacked header too
4. Junos ends up assigning that default VLAN, and this operator separately strips that inner header too