Implementing Cisco IP Switched Networks (SWITCH v2-0) (#267)

Which two statements about VRRP are true? (Choose two.)

It requires each device in the group to participate in the same dynamic routing protocol.
Preemption is not supported.
It can use a single virtual address to provide default gateway redundancy.
It uses a shared VIP to support default gateway redundancy.
It support clear-text authentication only.