Exam NS0-507 topic 1 question 12 discussion

correct - B NPV addresses the increase in the number of domain IDs needed to deploy a large number of the ports by making a fabric or module switch appear as a host to the core Fibre Channel switch, and as a Fibre Channel switch to the servers in the fabric or blade switch. NPV aggregates multiple locally connected N ports into one or more external NP links, which shares the domain ID of the NPV core switch among multiple NPV switches (see Figure 9-2). NPV also allows multiple devices to attach to the same port on the NPV core switch, thereby reducing the need for more ports on the core.