Using VMware’s best practices, choose two statements that define the best solution for scaling
layer 2 services for the virtual network. (Choose two.)
A.
Employ a layer 2 switched network.
B.
Employ a layer 3 switched network.
C.
Use GRE for an overlay network.
D.
Use VXLAN for an overlay network.
D, B
A: INCORRECT – L2 solution does not scale
B: CORRECT
C: INCORRECT – GRE is normally point to point, as well as irrelevant
D: CORRECT, VXLAN is an extension of VLAN, and can scale up to million instances (as compared to VLAN whish can scale up to 4000)
My words are not about which one is correct but i believe that there is some misunderstanding about scale because with MLAG design means “Employ a L2 2 switched network” also possible to scale , its depend.
I read this: https://en.wikipedia.org/wiki/Virtual_Extensible_LAN
It speaks of scaling. Also, the best way to scale layer 2, would be over a layer 3 network. That makes some amount of intuitive sense if you understand the underlying technologies.