This section consists of short open-ended questions that may require some research, critical thinking, as well as a sound understanding of commonly used networking technologies and protocols. Question 1 (20 Marks) ISP PC ISP Router (3) (4) Switcho Figure 2: An ISP network topology Please refer to figure 2. One can connect to the ISP Router through the ISP PC, using the terminal window in the ISP PC. The blue link from the ISP PC to the router is a console cable. 4| Page (5) (6) Internet Assuming you have access to ISP Router# in Cisco IOS of the router, answer the following. Some of the sub-questions below are expecting multiple answers and so do answer accordingly. ISP Server (1) Which commands can you use to determine the IP address and network prefix of interfaces? (7) (2) Which command provides the IP address and interface assignment, but not the network prefix? Which commands would you use to determine if an interface is up? You need to determine the IOS version that is running on a router. Which command will give you this information? Which commands provide information about the addresses of the router interfaces? You are considering an IOS upgrade and need to determine if router flash can hold the new IOS. Which commands provide information about the amount of Flash memory available? You need to adjust a router configuration, but you suspect that a colleague may also be working on the router from another location. Which command provides information about the lines being used for configuration or device monitoring? (8) You have been asked to check the performance of a device interface. Which command provides traffic statistics for router interfaces? (9) Customers are complaining that they cannot reach a server that they use for file storage. You suspect that the network may have become unreachable due to a recent upgrade. Which command provides information about the paths that are available for network traffic? (10) Which interface types are currently active on the ISP Router? Marking criteria: 2 marks each for the 10 sub-questions. Where there are multiple answers, the marks will be shared for each answer. Partial marks may be awarded for the partially correct answer.