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Differentiate between remote service and caching.
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Caching Remote Service
Remote access can be served locally so that access can be faster Remote access is handled across the network so it is slower in compairson to caching
Network traffic,server load is reduced. Improves scalability. Increase server load and network traffic. Performance degraded
Caching is better for machines with disk or large main memory Remote service better when main memory is small.
Network over head is less when transmission of big amount of data in compairson to remote service Transmission of series of responses to specific request leads to higher network over head in cmpairison to caching..
Here, total network overhead in transmitting big chunks of data is lower than a series of response to specific requests. Here, total network overhead in transmitting big chunks of data is higher than a series of response to specific requests.
For maintaining consistency, if less writes then better performance in maintaining consitency , if more frequent writes then poor performance. For maintaining consistency communication between client and server is there to have a master copy consistent with clients cached data
Lower level machine interface is different from upper level user interface It is just an extension of local file system interface across the network.
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