An NSX administrator is planning to deploy a multi-tier routing topology in their NSX-T Data Center environment to provide north-south connectivity for the VMs.
Which routing component must be deployed?
A. Tier-1 Gateway
B. Edge Services Gateway
C. Tier-0 Gateway
D. Layer 2 Gateway
I think is A. Reason: T0 is always deployed so there is no option to no deploy it. The question say “multi-tier” multi tier means T0 and T1 so T1 has to be implemented as a first gateway for the segments.
N-S connectivity and packet walk from a VM connected to a Tenant Tier-1 router to a device in physical infrastructure. Since this packet is destined for a device in physical infrastructure, this packet will go through the Edge node.
https://blogs.vmware.com/networkvirtualization/2018/02/nsx-t-multi-tiered-routing-architecture.html/
see “North-South Routing in Multi-Tiered Routing Architecture”