Which BGP configuration on R1 accomplishes this goal?

Refer to the exhibit.

A network engineer for AS64512 must remove the inbound and outbound traffic from link A during maintenance without closing the BGP session. Traffic should flow via the backup link toward the ASN.

Which BGP configuration on R1 accomplishes this goal?

Option A

Option B

Option C

Option D

A . Option A
B . Option B
C . Option C
D . Option D

Answer: D

Explanation

Local preference is used to choose the path to external BGP neighbors. An example of using local-preference is shown below:

In this case all BGP prefixes advertised via Link B will have a local preference of 200, which is higher than the default value (100) so Link B is preferred over Link A to send traffic.