Huawei Certified Network Professional – Routing and Switching (HCNP-RS, legacy) — Question 11

Which of the following attributes must exist in the BGP update messages? (Select 3 answers)

Answer options

• A. LOCAL_PREF
• B. NEXT_HOP
• C. ORIGIN
• D. AS_PATH

Correct answer: B, C, D

Explanation

The required attributes in BGP update messages include NEXT_HOP, ORIGIN, and AS_PATH, as they provide crucial information for route selection and path attributes. LOCAL_PREF is important but is optional and not mandatory in every BGP update message.