Q) The four conditions (mutual exclusion, hold and wait, no preemption and circular wait) are necessary for a resource deadlock to occur.Giv ean example to showthat these conditions are not sufficient for a resource deadlock to occur.When are these conditions sufficient for a resource deadock to occur.
Q) Explain howthe system can recoverfrom the deadlock in previous problem using (a) recovery through preemption. (b) recovery through rollback. (c) recovery through killing processes.
Q) Local Area Networks utilize a media access method called CSMA/CD, in which stations sharing a bus can sense the medium and detect transmissions as well as collisions. Inthe Ethernet protocol, stations requesting the shared channel do not transmit frames if theysense the medium is busy.When such transmission has terminated, waiting stations each transmit their frames. Two frames that are transmitted at the same time will collide.If stations immediately and repeatedly retransmit after collision detection, theywill continue to collide indefinitely. (a) Is this a resource deadlock or a livelock? (b) Can you suggest a solution to this anomaly? (c) Can starvation occur with this scenario?