Examine and understand the forwarding process as explained in the lecture (based on Forouzan). Answer the following two questions. a) Refer to Figure 1 network diagram from Question 1. Assume that a packet arrives at router R1 with a destination address of 140.21.3.250. Explain the router's logical processing of this packet (show its calculations as well) and its forwarding decision. (1 mark for correct forwarding decision, 3 marks for clear and correct explanation including calculations). b) In the same diagram (Figure 1), assume that a packet arrives at router R2 with a destination address of 160.27.14 10 Explain the router's forwarding decision and the