QUESTION 1 (15 Marks) (a) Answer the following questions. i) You are given the IP address 192.168.1.4/30. List ALL the addresses within the same subnet of the given address. [2 marks] ii) If the IP address 192.168.4.0/24 is divided into 4 equal sized subnet, what is range of usable addresses for Subnet 1 (the second subnet) and their subnet mask? Show your workings. [3 Marks) (b) Consider the following Figure 1 with a connection of 5 routers with the link costs, respectively. 2 5 2 E Figure 1 i) Write the complete Bellman-Ford equation for the Router A to Router B [4 marks). ii) Construct the least cost paths for Router A. [2 marks] (c) A datagram with 7000 bytes arrived at a router and must be forwarded to a link with an MTU of 1860. The identification number of the original datagram is 629. Draw all IP fragments that can be generated after fragmentation. [4 Marks] 2020/202