An enterprise uses a Metro Ethernet WAN with an Ethernet LAN (E-LAN) service, with the company headquarters plus 10 remote sites connected to the service. The enterprise uses OSPF at all sites, with one router connected to the service from each site. Which of the following are true about the Layer 3 details most likely used with this service and design? (Choose two answers.)
- The WAN uses one IP subnet.
- The WAN uses 10 or more IP subnets.
- A remote site router would have one OSPF neighbor.
- A remote site router would have 10 OSPF neighbors.
Explanation: An E-LAN service is one in which the Metro Ethernet service acts as if the WAN were a single Ethernet switch so that each device can communicate directly to every other device. As a result, the routers sit in the same subnet. With one headquarters router and 10 remote sites, each router will have 10 OSPF neighbors.
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