WEB application server are more prone to attack
First, we need to know why WEB application server will become the target of the attacker. The reason is very simple, because they can be publicly accessible, and with the back-end database servers are closely linked, back-end database server stores vast amounts of information so that criminals covet. Then, the attacker is how to use the front-end applications with WEB scored back-end database server barriers into the bargain.
I'm the Proud Owner of the most dangerous weapon
known to man kind: Human Brain