Exam JN0-360 topic 3 question 180 discussion

Actual exam question from Juniper's JN0-360

Question #: 180
Topic #: 3

[All JN0-360 Questions]

What are three BGP attributes used in the route-selection process? (Choose three.)

A. local preference
B. communities
C. MED
D. origin
E. atomic aggregate

Show Suggested Answer

Suggested Answer: ACD 🗳️
When a Junos device receives two similar route advertisements from different BGP peers, it will select the route will the lowest MED value. BGP route selection proceeds in this manner:
✑ Prefer the highest local-preference value
✑ Prefer the shortest AS-path length
✑ Prefer the lowest origin value

Prefer the lowest MED value -

✑ Prefer routes learned from an EBGP peer over an IBGP peer
✑ Prefer best exit from AS
✑ For EBGP-receive routes, prefer the current active route:
✑ otherwise, prefer routes from the peer with the lowest RID
✑ Prefer paths with the shortest cluster length
✑ Prefer routes from the peer with the lowest peer ID

by DIbyam at May 30, 2021, 11:50 a.m.