a. A small drafting company is trying to decide whether they should expand their network infrastructure. Their current network technician has determined that too much traffic from all locations is congesting the network. She believes that if the network were expanded the increase in traffic could potentially create more problems. She contacts you and asks what could be done to filter traffic and control the broadcasts that are currently on the network. What suggestions would you make? (2 marks) b. Explain the suggestions made in question a ? (3 marks) c. What are the advantages of the OSI model? (3 marks) d. (4 marks) Write the following masks in slash notation (In). i.. 255.255.255.0 iii. 255.255.224.0 iv. 255.255.240.0 e. Find the netid and the hostid of the following IP addresses. (3marks) i. 114.34.2.8 ii. 132.56.8.6 iii. 208.34.54.12