Exam ANS-C00 topic 1 question 61 discussion

Yes, the answer is B. Check the BGP session if it changes from established to idle state For private Direct Connect VIFs, verify the number of routes that you are advertising over the BGP session. If you are advertising more than 100 routes over the BGP session, the BGP session will go into an idle state. Summarize the routes so the number of advertised routes is less than 100, or advertise a default route over the BGP session to AWS.

The maximum number of routes allowed via a direct connect private bgp peering is 100 hence I think the correct answer is B

Question asks for what need to be done on Onprem Router "How should your on-premises BGP peer be configured to satisfy these requirements?" Answer B ( since BGP on PrivVIF only supports 100 routes)

It's B

B, the maximun number of routes on DX is 100, and the questions ask about configuration in "on-prem BGP peer"

https://aws.amazon.com/premiumsupport/knowledge-center/troubleshoot-bgp-dx/#:~:text=If%20you%20are%20advertising%20more,go%20into%20an%20idle%20state.&text=If%20you%20have%20more%20than,the%20BGP%20session%20to%20AWS. Check the BGP session if it changes from established to idle state For private Direct Connect VIFs, verify the number of routes that you are advertising over the BGP session. If you are advertising more than 100 routes over the BGP session, the BGP session will go into an idle state. Summarize the routes so the number of advertised routes is less than 100, or advertise a default route over the BGP session to AWS. If you have more than 100 networks in your on-premises network, you can advertise a default route over the BGP session to AWS. You can summarize the routes so that the number of advertised routes is less than 100.

B: "If you need to advertise more than 100 prefixes, then you should either summarize your routes to reduce the total number of prefixes or advertise a default route."

I have faced this issue practically and solved it. Answer is B.

B is correct

It is B . can’t be C as internet traffic should be flow through IGW hence not require to advertise default from on premise via BGP.

C as stated on https://docs.aws.amazon.com/vpc/latest/userguide/amazon-vpc-limits.html "This quota cannot be increased. If you require more than 100 prefixes, advertise a default route."

If you have more than 100 networks in your on-premises network, you can advertise a default route over the BGP session to AWS. You can summarize the routes so that the number of advertised routes is less than 100.

B its Correct!

For me it's D