1. a) "RADIUS" is an acronym for Remote Authentication Dial In User Service. Most companies implement a RADIUS server to enhance their network security. RADIUS associates with a client, such as a wireless access point, authenticating and authorizing users attempting to access the network. Illustrate the implementation of RADIUS server for scalable wireless LAN authentication. Include in your answer a relevant diagram to show the RADIUS server, wireless LAN, and a wireless device requesting connection to the wireless LAN. Provide relevant labeling for each item in the diagram. Note: - Your answer must also describe the process performed by the wireless device to be authenticated by RADIUS server and granted access to the wireless LAN (15 marks) b) Wireless Network Monitoring Tools allows you to discover, map and manage wireless devices across your network. Investigate unusual client bandwidth consumption. Get real-time alerts when CPU and bandwidth thresholds are exceeded. Evaluate WLAN monitoring tools by discussing how they perform the different functions such as: Access Point settings, coverage determination, network performance evaluation, and security auditing