In Which way does a spine-and-leaf architecture allow for scalability in a network when additional access ports are required?
A.A spine switch and a leaf switch can be added with redundant connections between them. B.A spine switch can be added with at least 40 GB uplinks. C.A leaf switch can be added with a single connection to a core spine switch. D.A leaf switch can be added with connections to every spine switch.正确答案D
