Advanced Services Building Core Networks with OSPF, IS-IS, BGP, and MPLS Boot Camp (BCN) v6.1 Quiz Questions and Answers

What best characterizes an external BGP connection?

Answer :
  • BGP running between routers in different autonomous systems

In the traditional BGP approach, you should ensure that consistent routing information is achieved by establishing a full mesh of IBGP sessions between all routers within the AS. True or false?

Answer :
  • TRUE

What can be done when a customer is assigned only a very small subnet of public addresses?

Answer :
  • Use NAT.

Why are VRFs used to establish separate routing protocol contexts?

Answer :
  • With routing protocols such as RIP and BGP, only a single copy of the protocol might be running in the router.

Which protocol can only attach a label for the ipv4 prefix?

Answer :
  • ldp

Which AS number selection is the best possible choice for a customer that is multihomed to multiple providers?

Answer :
  • a single public AS number

Why summarization is not recommended in Mpls Network ?

Answer :
  • this can break lsp path

To prevent potential future connectivity issues, which statement about IBGP full-mesh requirements in a transit AS is true?

Answer :
  • IBGP sessions have to be established between all BGP-speaking routers in the AS for proper IBGP route propagation.

Which authentication method will cause every TCP segment on the BGP session to be transmitted to the configured neighbor along with a checksum?

Answer :
  • MD5

What is the command to configure mpls on interface?

Answer :
  • mpls ip