Please read the case study linked here:

G$.$ Sonneck and T$.$ Mueck, "Performance tuning of an intranet application $-$ a case study," Proceedings $16$th International Parallel and Distributed Processing Symposium, Ft$.$ Lauderdale, FL$,$ USA, $2002,$ pp$.8$ pp$-,$ doi:$(10\mathrm{.}1109)/($I$)$PDPS$\mathrm{.}2002\mathrm{.}1016639.$

This case study demonstrates the process of performance tuning of a web$-$application, focusing on the performance of its Apache web$-$server, and Oracle database. It demonstrates many techniques and best$-$practices of performance tuning discussed in Chapter $11$: DB Performance tuning and query optimization.

Read Chapter $11$ and the case study to answer the following questions:

Provide a summary of the problem that the researchers were trying to solve.Map the performance$-$tuning steps discussed in the book to the steps by the researchers to improve the performance. Make sure you read the chapter as well as the case study to find this mapping. You can make a table with one column listing the techniques discussed in the book and the second column listing the steps taken by the researchers. There may be some steps in either of the columns with no mapping.Which steps gave them the most performance improvement outcomes and why?What is the key takeaway for you from this case study?