Question $1$ options:

In a network that requires high availability administrators often configure switches in a redundant topology ensuring that if one path to a destination is broken, another path can be used.$$ There are two problems that must solved in this scenario.$$ What are they?

Problem $1$: The first is to prevent a switching

when all links are up$.$

Problem $2$: The second is that the switches must have some way of knowing when one of the

is down.