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client server architecture ,EJB architecture and distributed architecture

 
jacob deiter
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What are the difference between client server architecture ,EJB architecture and distributed architecture .In client server architecture all layer(presentation,Service layer and persistence layer) exist in same JVM(same application server).But for EJB, all layer exist in many JVMs (many server).What about distributed architecture.Is it different from EJB?

Please correct me if i am wrong
 
aleem khan
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EJB Architecture may be distributed or non-distrubed...if there are lot of users say 2000 users then EJB could be made as distributed by simply involving more servers, or if the number of users are less then we can deploy EJB on single server
 
jacob deiter
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Thanks for reply,in client server architecture(non EJB based) if the number of use more than 2000,then i can't deploy many servers
 
Don't get me started about those stupid light bulbs.
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