Jim works as an administrator for a healthcare company. He has to support an older, legacy application. He is worried that this legacy application might have vulnerabilities that would affect the rest of the network. What is the MOST useful method to alleviate this?

The correct answer is to use an application container to isolate that application from the host operating system. Application containers provide a virtualized environment in which to run an application. Moving to software-defined networking (SDN) is a very involved process and does not provide an efficient solution. Running the application in a separate VLAN will not separate the application from the host operating system; it might not solve the problem. Since this is a legacy application, insisting on an updated version of the application isn’t feasible.