Recruiters will give you a really good idea of what you will encounter along the way. Ask them to elaborate on areas you aren't clear on and take notes. Take your time studying. Talk to your interviewers they will help you smooth out the rougher patches.
How HTTPS works
Most difficult question was the hands-on scripting interview. As a previous sysadmin I am not experienced with such formats, and my knowledge of Python was not at the level that the position required.
http, fork, process priority
Fizzbuzz, other leetcode problems Design twitter
What have you been working on lately professionally?
Tell me what you do on a day to day basis in your current role.
Write SQL queries that pull certain data from the table examples they give you
Questions asked linux commands, 2 programming( this was in 2nd round)
Experience, code challenge related questions, and problems/improvements in code
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