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Which of the following commands would be needed on R1 to configure eBGP?

Enterprise Router R1, in ASN 1, connects to ISP Router I1, ASN 2, using eBGP. The single
serial link between the two routers uses IP addresses 10.1.1.1 and 10.1.1.2, respectively.
Both routers use their S0/0 interfaces for this link. Which of the following commands would
be needed on R1 to configure eBGP? (Choose two.)

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A.
router bgp 2

B.
router bgp 1

C.
neighbor 10.1.1.2 remote-as 2

D.
neighbor 10.1.1.2 Update-source 10.1.1.1

E.
neighbor 10.1.1.2 Update-source S0/0

Explanation:
The router bgp command lists the local ASN, and the neighbor remote-as command lists the
neighbor’s ASN. Because the neighbor relationship uses the IP addresses on the common
link, the routers do not need to identify the update source interface, because each will
default to use their S0/0 interfaces (in this case) as the update source.


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