C++ webserver development (2000408)

Hello, We are looking for C++ programmer to work on our existing web server development. The tak would be bug fixing as well as new enhancements. Before we decide a developer we need to check his ability so attached one task to check programmer hands on and ability to work on C++ /network programming. Please provide the solution and depending upon the quality of solution we will choose our developer and share our requirements. Find below task and we expect solution in simple .cp or .cpp file. Thanks, \---|\---|\---|\---|\---|\---|\---|\---|\---|--