I have tested ecommerce site, but when i search for any 
product Or access any page, some time i found it missed the 
values from my URL..EXAMPLE : we take this 
URL "http://www.allinterview.com/forms/questionform.php" 
This is the actual URL & it is ok 
but when i test it displays 
like "http://www.allinterview.com//questionform.php" 
NOTE : In above URL "forums" is missing.. 
I dont know why this happens as i have

Security testing sometimes called as penetration testing.
here we form a penetration matrix. We see what is the 
probability of perpetrator(virus, trogen etc) how it is 
will give impact by penetration to system.

The testing process involves an exploration of the all 
security features of the system , followed by an attempt to 
breech security and penetrate the system.

using bitmap check point

It's relatively a new term used recent times as many company
now a days are looking for security of the networks too.
Each and every company will have there own internal
terminology. we can call it as Security assessment also.

 At its simplest, a penetration-test is the process of
actively evaluating your information security measures. The
information systems will be tested to find any security
issues, as opposed to a solely theoretical or paper-based audit.

The results of the assessment will then be documented in a
report, which should be presented at a debriefing session,
where questions can be answered and corrective strategies
can be freely discussed.