iv. V iii. Reliability 11 mark] Qos [1 mark] Scalability [1 mark] e Highly reliable networks are highly available, but a highly available network might not be highly reliable. Discuss. 12 marks] d). A networking device reboots every hour. The reboot takes five minutes, after which the device works as expected. Calculate the: i. availability of the network. [2 marks] ii. reliability of the network [2 marks] QUESTION THREE [20 marks) a). Briefly illustrate how the CDMA Spread spectrum can be implemented in a transmission system to achieve a wider bandwidth. 12 marks] b). Differentiate between a Baseband data stream and a Broadband data stream. [2 marks] c). Discuss the four main benefits of Content Delivery Networks. (4 marks d). Explain the concepts deployed in these technologies: 1. Channel Coding Scheme [2 marks] ii. Automatic repeat request (ARO) [2 marks] iii. Space-Time Code 12 marks] iv. Multiple-Input and Multiple-Output (MIMO) [2 marks] Space diversity 12 marks] vi. Opportunistic user scheduling [2 marks] 33 ans NSOWE