A:
Yes, it will see through a window at night; however the image tends to be degraded by reflections bouncing off the inside of the window.
I have mine set up to shoot through a window; the window-blinds are behind (more 'inside') the camera; but at night, the inside lights cause the image of the blinds to be reflected off the inside-face of the window, and back into the camera lens, making the image somewhat noisy.
Clean the window real well; and the more 'straight-on' (90 degrees/right-angle) you can point the camera at the window, the better. The more slanted it is, the more reflection you will get.