Great question. I wouldn't recommend diagramming this stimulus; instead, I'd recommend summarizing what's being said and anticipating what we can infer.
We know that the plan is to make changes to the operating systems since it helps to make the entire network safer. The whole network is at risk when all of the computers on the network are the same because if one is hacked, all of them can be hacked. When each computer on the network is unique, there is more safety, as if one of them gets hacked, the others can't necessarily be hacked as well. This reduces risk.
We're looking for what we can infer.
(C) says, "If a business introduces variety into its linked computer operating systems, it will have increased overall protection for its systems, but will not have protected every computer from viral invasion."
(C) is something that we can definitely infer. The variety helps provide more safety because the codes for hacking the computers will be different. However, there is still the possibility that the hacker could hack into one computer and infect it with a virus. (C) picks up on the key inference we can draw from the stimulus, so it's the correct answer choice.
Does this make sense? Let us know if you have any questions!
emilydemmerSeptember 11, 2019
So do we typically not diagram MUST BE TRUE questions?
SkylarSeptember 21, 2019
@emilydemmer Great question. Whether or not diagramming is necessary truly depends on the individual question. In this case, it is much more efficient to follow the logic mentally. I often feel this way about Must Be True questions, but there are certainly cases where diagramming is recommened for a Must Be True question. Instead of looking to the type of question to determine whether or not to diagram, I would recommend looking at the logic used in the question. It is also helpful to look out for key words that indicate Sufficient/Necessary language.
