Question 4: You want to test the performance of web sessions across a wireless access network, between PCs and an IP router that terminates point-to-point protocol (PPP) and PPP over Ethernet sessions, as shown in Figure 3.34. Describe how you would test performance, both on a testbed and on the existing network. List any equipment, software, and networking devices you would use. (2 marks) Wireless Connection Corporate Network User PC P Router PPP/PPPoE Session