Kamil Zabielski limakzi

## questions.md

      
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                kwilczynski
                / questions.md
            
            
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              July 12, 2022 16:58
            
              
                Assorted interview questions (across networking, Linux, OS internals, AWS, Docker, etc.)
              
          
    Generic questions


How does a CDN (Content Delivery Network) work?

What is a "POP"?
What are the benefits of a CDN, and what these tend to offer (briefly)?
What is "geo-IP", what is it used for?
Can CDN be used for load-balancing?


Can you describe how DNS works?


Ask about TCP vs UDP, what problems is TCP trying to solve?