Yeah, the guys (and it's always guys) are always from (and still in) India, generally with a BS or MS in Electrical Engineering. I've been on searches for network positions where the candidate will claim mid-career Cisco certifications, which, on paper, seem to check out. However, a number of years ago, we began implementing a "technical interview" piece where we have the candidate SSH into a specially configured switch and perform various tasks, starting with simple ones up through ones that would give a pro trouble. The point isn't "you must get all these questions right," we're just seeing what practical knowledge they have. Cisco IOS is complex enough that it's not really something anyone, or even any ordinary computer geek, can just bullshit their way through, but is going to be familiar to anyone who actually works with network equipment on a regular basis or has passed Cisco exams without cheating.
To be clear, I'm not trying to claim all Indians are like this: I've worked with a number of Indians both remotely in India and here in the States who were never anything but skillful and professional, and often pretty fun to work with, too. But even those guys will after the second beer admit that, yeah, there's a huge amount of cheating and scammy career stuff back home.
What's also darkly hilarious to me is that I work somewhere that is very much the heartland of wokeness, and ordinarily, no one would ever be racist enough to doubt a Person of Color. But even my most bien pensant NPC soy latte drinking coworkers recognize these guys as being full of shit.