Which statement about OSPF incremental SPF is true?

Drag and drop the EIGRP design considerations from the left onto the corresponding hierarchical layer characteristics on the right

Drag drop the design requirement on the left to the tool or protocol that can accomplish the requirement on the right.

Refer to the exhibit.

An enterprise is migrating its single-area OSPF network from a Frame Relay WAN service to an MPLS L3VPN service. Frame Relay will remain in only a few sites that require increased resiliency via two different WAN connections.
Which feature could be used in the?
MPLS VPN service provider network to support the design requirement by ensuring that during normal operation, intersite traffic will only use the MPLS VPN service and not the old
Frame Relay service?

Refer to the exhibit ACME Mining has four data centres in Santiago, Cape town, Mumbai, and Beijing, full-mesh connected via a 400 Mb/s EVP-LAN. They want to deploy a new mission-critical application with these requirements
* cluster heartbeat 2 Mb/s continuous (250 KB/s)
* cluster heartbeat one-way maximum latency 100 ms
These are the current ping tests results between the four data centers:

Which hosting data center pair can host the new application?