Answer from cs61c-cg (Daniel Lau 16776873) for Question 1
Even though there is no delay in the wire, but the flip flop will still have the clk-to-q delay. and the ouput will respond a little later. The circuit behave as expected or not depends on the clk-to-q delay of each component. if they are the same or almost same, then the circuit will work as expected.