Refer to the exhibit.
Switch 1 and switch 2 run open Shortest Path First (OSPF) on all VLANs. Both switches establish an OSPF adjacency to a router at the main data center. Exhibit shows shoes some virtual Routing Redundancy Protocol (VRRP) and OSPF settings on Switch 1 during normal operation.
How can a network administrator increase the resiliency of this solution?
A. Implement Bidirectional Forwarding Detection (BFD) on the peer keep alive link between the core switches.
B. Change the VLAN 10 subnet to a /24 subnet and enable VRRP on it. Place Switch 2’s link to the main data center in this subnet.
C. Make sure that, in each VRRP instance, each switch has a VRRP preempt delay of several minutes.
D. Configure Switch 1 as an OSPF graceful restart helper in VLAN 11 and Switch 2 as a helper in VLAN 10
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