Exam JN0-663 topic 1 question 45 discussion

Actual exam question from Juniper's JN0-663

Question #: 45
Topic #: 1

All networks shown in the exhibit contain more than one BGP speaker. You operate ISP A and must ensure that Customer Y sends their traffic to you over the directly connected link. Customer Y is not to be used for transit into your network.
What would you do to accomplish this task?

A. Advertise routes to Customer X with the custom defined 0:0 community.
B. Advertise routes to Customer X with the well-known no-advertise community.
C. Advertise routes to Customer Y with the custom defined 65535:65535 community.
D. Advertise routes to Customer Y with the well-known no-export community.

Show Suggested Answer

Suggested Answer: D 🗳️

by DirkBaert at Oct. 6, 2021, 10:03 a.m.

Comments

Submit Cancel

mohdema

2 years, 4 months ago

Selected Answer: D

https://ipcisco.com/lesson/bgp-community/ This Community prevents advertising the routes to outside the Local Autonomus System. The routes coming with this attribute, are not advertised to eBGP peers. So, you can advertise routes to iBGP neigbors with this Well Known BGP Communities. With this BGP No-Export Community, we prevent our Autonomous System also to become a Transit AS. Think about it. If you are advertising any routes from AS X to AS Y with BGP Community No-Export, AS Y do not advertise these learned routes to any other AS. So, we prevent AS Y to become a Transit AS.

upvoted 1 times

...

oceans1908

3 years, 2 months ago

D no export will solve this

upvoted 1 times

...

DirkBaert

3 years, 6 months ago

agree w D

upvoted 3 times

...

Exam JN0-663 All Questions

View all questions & answers for the JN0-663 exam

Exam JN0-663 topic 1 question 45 discussion

Comments

mohdema

oceans1908

DirkBaert

SY0-701