Study the mini-scenario below and answer the question. (total 20 marks). Known data: - PC0 default gateway points to 10.10 .10 .1 - PC1 default gateway points to 172.16 .16 .1 - Routing tables: R1 Questions: 1) When PCO senda a PNNG packet to PC1, do you think if the roundtrip packet across two offices is a gymmetric transmission (ie in and out paths are game)? Briefly explain your answer. (5 marks) 2) How can you fix it if your above anower is negative? Or explain above if your answer is positive. (5 marks) 3) Now you need to engure 2Mbpg link is the primary link for communication between PCO and PC'l and 128kbpa link is just a standby (for backup purpose). How can you configure floating static route(g) to achieve that? (10 marks) What are the advantages of designing LANs using the hierarchical model? Comparing the differences among access layer, distribution layer and core layer. 6. Inter-VL.AN routing is referred. Which method of the following will you prefer? Briefly provide your supporting reasons briefly. (15 marks) 1. Router-on-a-stick inter-vlan routing 2. Layer 3 switch inter-vlan routing 7. Describe any five types of typical virtual local area network (VLAN). (10 marks) 8. Answer the questions baged on the network topology below (max. 15 marks): a) Compare the LAN design in left block (those in square) and the one in right block (those in circle). The criteria can be anything such as equipment regourceg, administrative overhead and resiliency arrangement etc. (7 marks) b) For the best deaign gelected from part a), do you think is there is any room to improve? State any of them if there is fiuther improvement or provide your reason if there is not. (8 marks)