多选题Which two are characteristics of the Intercepting Filter pattern？（）Ait provides centralized request handling for incoming requests.BIt forces resource authentication to be distributed across web components.CIt reduces coupling between presentation-tier
题目
多选题
Which two are characteristics of the Intercepting Filter pattern？（）
A
it provides centralized request handling for incoming requests.
B
It forces resource authentication to be distributed across web components.
C
It reduces coupling between presentation-tier clients and underlying business services.
D
It can be added and removed unobtrusively， without requiring changes to existing code.
E
It allows preprocessing and postprocessing on the incoming requests and outgoing responses.