JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing — Question 42

Using industry best practices, which BGP attribute would you modify to influence how traffic leaves your network?

Answer options

• A. MED
• B. local preference
• C. AS-path
• D. communities

Correct answer: B

Explanation

The correct answer is B, local preference, as it is the primary method used to influence outbound traffic in BGP. Options A (MED), C (AS-path), and D (communities) have different functions; MED affects incoming traffic from external peers, AS-path is used for loop prevention and path selection, and communities are used for grouping routes but do not directly influence outbound traffic preference.