Huawei Certified Network Professional – Routing and Switching v2 (HCNP-RS) — Question 14

Which BGP attribute is usually used to determine the path along which data flows enter an AS?

Answer options

• A. Router ID
• B. Nexthop
• C. Local-Preference
• D. MED

Correct answer: D

Explanation

The Multi-Exit Discriminator (MED) is used to influence the choice of entry point into an Autonomous System by specifying the preferred path. Router ID, Nexthop, and Local-Preference serve different purposes in BGP routing and do not specifically determine the path for incoming data flows.