Lighting candles in a house with two windows

Peace to Qatar

The Gemara states that a person who has two entrances must light a lamp in both of them, lest the people of his city say, "I did not light a lamp in the other one, but I did not light a lamp in the other one."
That is, they know he has two openings and yet they still suspect him.

I wanted to ask whether it is mandatory to light a window in every wind?