What is two tier and three tier architecture?
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Answer Posted / mitesh pandere
two tier achitecture is use for implement web based
application in which:
application logic implemented on pc's or client with
interfaces.application logic exicuted on pc not on the
server.database store on other server. one of the main
dissadvatage of this , when new updates release you have to
apply updates to each individual pc. think about network
where thousands of pc's connected, it's time consuming
process to apply updates to each pc on network.
three tier architecture is archetecture use for web based
application in which it consist of :
1)presentation layer :implemented on client.
This is topmost layer of 3 tier it . you can think it as
GUI gets input form user send it to application logic,
and show the result in sutable format.
2)applicaton logic layer or server:
this layer cordinate the application , process ,
comands,makes logical decisions, calculatons.
search contains from databases
3)database server:
this generally stores data in tabaular format.
generally database server RDBMS. the information you ,
will get after proceesing data from database server .
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