Example:
When i log to your site ( I am from India), from the program you should be able identify i am logged to your application from india location, next person log'sin say from california , again you should be able to identify the user from different (American) location. at the end you need to give list users , how many are logged from india and how many from America or any other location.
This was the question asked in PFT interview by a director.