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|Java - Interview Questions and Answers|
|Ans. We have multi tier architecture with multiple layers , We have series of web servers and applications in application tier, infrastructure libraries at middle tier and Database servers at the lower tier. We are using Oracle as Database, ESB ( Enterprise service Bus ) for asynchronous communication and Rest Web Services.|
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|What things you would care about to improve the performance of Application if its identified that its DB communication that needs to be improved ?|