Yes, I started my career in big tech and everything was so abstracted away I never really knew how it all worked as a junior. When I went to a startup and it was not longer all abstracted away I learned a ton about how it works (we were working on something cybersecurity related).
When I went back to big tech it really helped me out just knowing basic things about networking. For example, my manager joked that people should have to take an intro to DNS as part of their on-boarding to big tech.
I don't fault people for not knowing either, it was just never really a priority and the point was you shouldn't have to care. You should become an expert in your business domain and spend time solving business problems. Whether or not that was the right approach is up for debate though.
When I went back to big tech it really helped me out just knowing basic things about networking. For example, my manager joked that people should have to take an intro to DNS as part of their on-boarding to big tech.
I don't fault people for not knowing either, it was just never really a priority and the point was you shouldn't have to care. You should become an expert in your business domain and spend time solving business problems. Whether or not that was the right approach is up for debate though.