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juniper-jncis-dc_d1_c396230b1ebf domain/d1 · medium single

A design team is choosing the routing protocol for the underlay of a new three-stage IP fabric based on the Juniper reference architecture. Which underlay approach does the reference architecture use, and why?

A OSPF, with all devices in a single area for simplicity
B EBGP, with each spine and leaf assigned its own autonomous system, chosen for dependability and scalability
C IBGP with route reflectors on the spine devices
D IS-IS, because it eliminates the need for MC-LAG

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