1) You are designing a small network where stations would be connected to a common medium. You have the choice between slotted ALOHA and Time Division Multiplexing (TDM). Make an assessment of the Quality of Service provided by each of these options.

2) It has been observed that packets from workstations in Network N cannot reach any web site on the Internet, especially when packets are caught into congested areas or in long queues on routers. It is assumed that the physical connection, entries in the routing tables and files on the DNS server are all correct. By considering one the fields of the IPv4 protocol header, determine any possible nature of the problem and propose a solution to it.