When someone (e.g. employer) considers school prestige, is s/he really judging you by ...

In the UK it’s common to administer SAT-like math tests (though they are actually long tail tests more like the Oxford TSA so you will never get 100%) even for those who are many years out of college. My sister-in-law who is in her mid-40s (and has a Cambridge math degree!) was asked to do one recently as part of the interview process for a CEO level job.