List Vs Tuple ,Array vs List ,Decorators ,iterator vs Generator, SQL Where VS Having clause ,AWS Services

Included questions like AWS concepts,generator in python,2 python questions list_1 = [0, [1, 2], [4, [6, 7, [8, 9]]], 10], expected_answer = [0, 1, 2, 4, 6, 7, 8, 9, 10] and list_1= [1, 7, 0, 0, 8, 0, 10, 12, 0, 4], expected_answer = [1, 7, 8, 10, 12, 4, 0, 0, 0, 0] regarding static variables