Question

i know that we can send variables in url by this syntax:

http://www.example.com/index.php?a=1&b=2

and i know that we have some default files like index.html,index.php,…to redirect and we can rewrite above code as below:

http://www.example.com/?a=1&b=2

but i dont understand what is this :

http://www.google.com/search?q=e

this must be :

https://www.google.com/search/?q=e

are they same ?

Answer 1

This:

http://www.google.com/search

would technically be a file called search
and this:

https://www.google.com/search/

a directory called search and will usually be rewritten to the index file automatically.
Read this article by Google for more info about the so called “trailing slash”: http://googlewebmastercentral.blogspot.de/2010/04/to-slash-or-not-to-slash.html