BGP-Weight 1 Flashcards
Multiple-Choice Questions on BGP Weight Attribute
What is the purpose of the BGP Weight attribute?
A) To influence outbound traffic between ASes
B) To determine the shortest AS path
C) To manipulate inbound traffic from an external AS
D) To advertise routes to IBGP peers
Answer: A) To influence outbound traffic between ASes
📌 Explanation: The BGP Weight attribute is used locally on a router to influence outbound path selection but does not affect routes advertised to neighbors.
Which of the following statements about the BGP Weight attribute is true?
A) It is a mandatory well-known attribute
B) It is transitive and shared with IBGP neighbors
C) It is Cisco proprietary and only used on the local router
D) It is always set to 0 by default
Answer: C) It is Cisco proprietary and only used on the local router
📌 Explanation: BGP Weight is Cisco-specific, non-transitive, and only applies locally on the router that assigns it.
What is the default BGP Weight value for locally originated routes?
A) 0
B) 32,768
C) 65,535
D) 100
Answer: B) 32,768
📌 Explanation: Routes originating from the local router (e.g., via the network command) get a default Weight of 32,768.
What is the valid range for the BGP Weight attribute?
A) 0 to 255
B) 0 to 4,294,967,295
C) 0 to 65,535
D) -32,768 to 32,768
Answer: C) 0 to 65,535
📌 Explanation: BGP Weight is a 16-bit value and can be manually set from 0 to 65,535.
Which of the following is the highest priority attribute in BGP path selection?
A) AS Path
B) Local Preference
C) MED
D) Weight
Answer: D) Weight
📌 Explanation: Weight is evaluated first in the BGP Best Path Selection Algorithm. If multiple paths exist, the one with the highest Weight is preferred.
