Do I need to know http, dhcp, dns, dat?

Question

IT education

Hello!
I 'm studying back-end (java)
developer and wanted to know if I need to know http, dhcp, dns, dat thoroughly?

Answer 1

Hello! I am studying to be a surgeon (hospital) and I wanted to know if I need to know in detail the types of mortars and the list of elements of the UPS-14A switching power supply?
On the topic: only the first, and even that can be argued. The rest is not.

Answer 2

You need to learn not what they say to learn, but what you need to know specifically at the moment, specifically in this project. It's up to the question whether it's necessary or not.
And so, about most things it is enough to know what they are and at least roughly understand what they are.
In this way, you weed out what will die as quickly as it was born and learn what is really needed.