Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) — Question 68

An engineer is trying to implement BGP in a multihomed architecture. What must the engineer configure to influence inbound path selection?

Answer options

• A. A route map with AS-PATH attribute to control the inbound traffic
• B. An offset list to set the metric for routes received from neighboring autonomous systems
• C. An access list to identify traffic and enable it on both of the provider-facing interfaces
• D. A route map with WEIGHT attribute to control the inbound traffic

Correct answer: A

Explanation

The correct answer is A because using a route map with the AS-PATH attribute allows the engineer to manipulate the path selection based on the AS sequences. Options B and D, while relevant to BGP, do not influence inbound path selection directly as they pertain to outbound metrics. Option C does not impact path selection but rather traffic filtering and management.