Refer to the graphic. R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons for this problem?()https://assets.asklib.com/images/image2/2018072609080359070.png

A . All of the routers need to be configured for backbone Area 1. B . R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3. C . A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established. D . The hello and dead interval timers are not set to the same values on R1 and R3. E . EIGRP is also configured on these routers with a lower administrative distance. F . R1 and R3 are configured in different areas.

时间:2022-09-26 06:35:13 所属题库:CCNA(200-120)题库

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