JN0-1300: Data Center Design, Specialist (JNCDS-DC)Demo

By Juniper · Question Mode

QuestionQ5

Routing Fundamentals

A customer has chosen to deploy a Layer 3 Clos IP fabric in its data center. They want to use IBGP while avoiding the full-mesh requirement in this deployment.

Which two actions would achieve this goal?

Choose two
  • A Use well-known communities on all advertised routes.
  • B Use BGP confederations.
  • C Use AS path prepend policies.
  • D Use route reflection within the design.
Explanation

BGP confederations divide an autonomous system into sub-ASs, reducing the IBGP full-mesh scaling requirement. Route reflectors can advertise routes learned from IBGP clients to other IBGP peers, eliminating the need for every IBGP router to peer with every other router. BGP communities and AS-path prepending influence routing policy or path selection but do not remove the IBGP mesh requirement.

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