B - only 10.200.3.0/24 will be advertised. The neighbor export overrides anything at the group level and protocol level. Policies aren't additive, you can't apply all three at the same time. What if one of them rejected a prefix while the other accepted the same one? You need one to override the other
No answer is definitively correct here really.. Technically there isn't enough information to determine an answer or make a correct answer... which implies the question is incomplete
Obviously the question is trying to get you to answer that the only routing policy that applies is the 3rdpolicy... HOWEVER... there is no policy to stop default processing (i.e. a reject after the accept)
SO... we could surmise the B is actually incorrect because we dont know FOR SURE that thats the only route in the table on R1 and in fact R1 could have a tonne of ebgp routes in its table that would still be sent to the neighbor
However, the way the question is worded sounds like they're trying to make sure you know that
a) export policies at multiple levels dont "add"
b) most specific export polices always win
so... B is the most likely answer
Answer B - see the example in juniper scanrio
https://www.juniper.net/documentation/us/en/software/junos/routing-policy/bgp/topics/example/policy-bgp-levels.html
On Device R2, the show route protocol bgp command shows that the only route that Device R2 has learned through BGP is the 192.168.20.1/32 route.
C- policy doesnt have a explicit tail deny rule so if a route not match policy in neighbor it will match to default bgp policy that is accept export all prefixes by default. https://www.juniper.net/documentation/us/en/software/junos/routing-policy/topics/concept/policy-routing-policies-actions-defaults.html
The neighbor export overrides anything at the group level and protocol level.
upvoted 3 times
...
Log in to ExamTopics
Sign in:
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
Bob_Smith
Highly Voted 1 year, 1 month agoTakigama
Most Recent 1 month, 4 weeks agoADharma
5 months, 4 weeks agodimits
6 months, 1 week agoGolanZemach
9 months agoantigel8
9 months, 1 week ago7c3a129
11 months, 1 week ago[Removed]
11 months, 2 weeks ago