(e) i. In your view, do you think the Unicast, Multicast, and Anycast are relevant? ii. Different between IPv4 and IPv6 3 marks 12 marlal QUESTION TWO [20 Marks] (a) Show how the following transmission principles are applied in digital communications networks. i. Time-space-code. 12 Maris ii. Multiple In Multiple Out (MIMO). 12 Marks iii. Opportunistic user scheduling. 12 Marles (b) Your organization plan to expand its network infrastructure to other branches to enhance its service delivery. The organization has been advised by a renowned IT Consultant to implementa coding scheme in the new transmission system. As an IT Director of your organization, discuss why you will prefer to implement a channel coding scheme in the input and output signals of the digital communication infrastructure in your organization. 12 Marks) (c) Channel coding or forward error control coding, is a spread spectrum technology which is performed both at the transmitter and at the receiver. i. Show how this technology works. 13 Marks) ii. How does Automatic repeat request (ARQ) work? [3 marks (d) In order to improve the efficiency and reliability of a transmission channel in a digital communication coding scheme. Find the code rate of this scheme if the transmitted information was divided into: i. 64 blocks with 16 parity bits. [3 marks] ii. 128 blocks with 32 parity bits [3 marks]