Case Study $3\mathrm{.}1$: Case Project $4\mathrm{.}1$ on Page $168,$ and Case Project $5\mathrm{.}1$ on Page $212.$

Case Project $4-1$: Using System$-$Monitoring Tools You recently became the server administrator for a company. As soon as you walked in the door, users were telling you the network is running slowly quite often, but they couldn$$t tell you when it happened or how much it slowed down. What tests and measurements could you use to try to determine what$$s going on$?$