フリー問題

問題文

A border router in an OSPF network loses the link that joins it to the backbone area. Junos OS runs active backbone detection on that router. What does the router go on telling the other routers while the link is down?

選択肢

1. That its role at the area border is suspended for now
2. That its own default metric still holds good for reaching the backbone through it
3. That its own default metric still holds good for the areas beyond it
4. That it is still a border router and may be weighed for routes between areas