When configuring 802.1X authentication, what are three server fail fallback settings? (Choose three.)

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There is a functioning OSPFv3 neighborship between Router-1 and Router-2 over the ge-0/0/1 link.
However, the 172.100.100.0/24 and 172.101.101.100/24 routes are not being shared through OSPFv3.
Referring to the configuration shown in the exhibit, which two actions must you take to solve the problem?
(Choose two.)

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Referring to the exhibit, how is R1 learning the route from R2?

You notice a mass withdrawal of routes for some of the network hosts. You determine that the link on the ESI interface is down.
Which route type is used in this scenario?

Exhibit.

YourNet is learning the 210.210.40.0/24 route from Provider A and Provider B YourNet would like to forward traffic destined to the 210.210.40.0/24 networking using Provider B.
Referring to the exhibit, how would you accomplish this task?