where is the switch for porch light located normally?

Don't know whether the bulb is burned out or it should be the same switch as the front light?
Will try looking at the light itself to find whether there is a light.
The light itself looks like a bar attached to the wall. From what I could see from ground, there is no switch...
I don't have a picture on hand, sorry.

Thanks to all of you for the kind replies!