problem 1: describe the different services of Operating System.

problem 2: What do you mean by process? Illustrate different process states? prepare about PCB.

problem 3: Describe the given page replacement algorithms, giving an appropriate page reference string.

• LRU
• FIFO
• Optimal

problem 4: Describe about File allocation methods.

problem 5: Describe different security issues in operating systems.

problem 6: Distinguish Distributed systems from Multiprocessor systems.

problem 7: describe the causes of Dead locks.

problem 8: What do you mean by scheduling? Describe about Round robin scheduling algorithm with appropriate ex.

problem 9: Describe about inter process communication.

problem 10: Describe steps included in the DMA transfer.