A routing protocol is required that supports: 1)routing update authentication 2)an addressing scheme that conserves IP addresses 3)multiple vendors 4)a network with over 50 routers Which routing protocol fulfills these requirements（）。
- A、RIPv1
- B、RIPv2
- C、EIGRP
- D、OSPF
正确答案:D
答案解析:有
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