I worked as QA intern during my summer, i have a question when i used to run tests for product build. I used to find 3 QA environments associated with one Dev environment?
Dev has 1 Environment which consisted of (Server3,Server4)
QA has 3 Environments which consisted of (Server5 Server6), (Server25,Server26) and (Server7,Server8)
Why are so many servers associated with QA environment?