SSAS Tabular: Scale-Out Query Architecture

Earlier this week, while discussing high-concurrency architecture options for SSAS multidimensional, a colleague asked about options for SSAS tabular and mentioned there was very little information available online specific to tabular.and so, a blog post is born. The short answer is that Scale-Out Query Architecture for Tabular is essentially identical to that for multidimensional. And there's already some pretty good material available on the internet for that (e.g. Scale-Out Querying with Analysis Services) so what follows is a simple adaptation specific for tabular.