Refer to the e xhibit. It is desired to set up a BGP neighbor relationship between routers R1 and R4. BGP packets between them could travel through R2 or R3. What is the simplest configuration that will allow for failover?（）A. Configure BGP n eighbor rela

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Refer to the e xhibit. It is desired to set up a BGP neighbor relationship between routers R1 and R4. BGP packets between them could travel through R2 or R3. What is the simplest configuration that will allow for failover?（）

A. Configure BGP n eighbor relationships between all interfaces on R1 and R4.

B. Install a direct connection between R1 and R4.

C. Configure loopback interfaces on R1 and R4 to provide the update source address for BGP packets.

D. Configure only one neighbor relationship between R1‘s 192.168.1.2 interface and R4‘s 172.16.10.2 interface.

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参考答案：C

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