Your question is SDLC, STLC and QA Practices Overview. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Describe your understanding of SDLC, STLC, the Defect Life Cycle, Agile methodology, QA necessity, test plan creation, test case creation, shift left testing, regression testing, and manual testing.