Which of the following are true of both OSPFv2 and OSPFv3?（）A、The method of choosing an OSPF router IDB、Verification checks that must be validated before two routers can become OSPF neighborsC、Support for route tagsD、Support for multiple instances per inter face
Which of the following are true of both OSPFv2 and OSPFv3?（）
- A、The method of choosing an OSPF router ID
- B、Verification checks that must be validated before two routers can become OSPF neighbors
- C、Support for route tags
- D、Support for multiple instances per inter face
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