I think it's the TCP/IP, CORS, CI/CD, setting up the correct boilerplate with right tools, deployment on the VPS.... Should I know all this to be considered as hirable?!
I think if you're looking for a job as a web dev or anything outside of devops or networking, you should be fine. CORS seems to come up a lot for me personally, but I can't imagine a reasonable company making any of the things you mentioned a requirement for someone just entering the field.
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I think it's the TCP/IP, CORS, CI/CD, setting up the correct boilerplate with right tools, deployment on the VPS.... Should I know all this to be considered as hirable?!
I think if you're looking for a job as a web dev or anything outside of devops or networking, you should be fine. CORS seems to come up a lot for me personally, but I can't imagine a reasonable company making any of the things you mentioned a requirement for someone just entering the field.