Spoke A and spoke B are each peered with a hub, but they have no direct peering or configured forwarding path. Why can A not automatically reach B?

Choose the single best answer.

A.Gateway transit automatically provides spoke-to-spoke communication but DNS never does
B.VNet peering is nontransitive; add direct peering or deliberately configured hub routing and forwarding
C.Global peering is the only way any two same-region spokes can communicate
D.Every VNet peering blocks private IP traffic by definition

Show the answer and explanation

✓ Correct answer

VNet peering is nontransitive; add direct peering or deliberately configured hub routing and forwarding

Two hub peerings do not create automatic transit between spokes. Peering does carry supported private IP traffic, gateway transit is a separate shared-gateway feature, and same-region spokes can use direct peering or routed hub transit without requiring global peering. Source guide: PDF page(s) 55.

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