In the following network, each packet's size is 100 Bytes (1 Byte = 8 bits). Carefully observe the following network and answer the questions below. [2+2+2+3=9 Marks ] PC 1 PC2 PC3 10 Pkts/sec 17 Pkis/sec 15 Pkts/sec Router 1 40 Kbps Light Sped = 3e8 m/s Router 2 30 Kbps Server a. What is the propagation and transmission delay between router 1 and router 2 for each packet? b. What is the traffic intensity of Router 1? c. What would be the traffic intensity if a cache server is deployed in the same LAN of the three PCs and 30% of the requests are served by the cache server? d. Suppose the three PCs are using the server to play an online game, among TCP and UDP which one would you prefer for this purpose, and would cache be helpful in this casescenario?