Question from OS
1. UDP is transfer protocol used in internet applications which does not guarantee that all packets are delivered, that packets will be delivered in order that they or sent, nor that packets may not arrive more than once. Explain why any application would use such a protocol as opposed to TCP which does guarantee all of these things.
2. In a system that uses paging, a process cannot access memory that belongs to another process. Why? Why is it theoretically possible with segmentation but not paging?