Operating System Important Questions And Easy Units For Exams
UNIT I1.Explain the Types of System Calls in detail
2.xplin how hardwar protection can be achieved and discus in dtail the dualmd of oprn.
3.Explain in detail any two operating system structures
4.List out the services provided by operating system in detail
5.Describe the differences among short-term, medium-term, and long-term scheduling.
UNIT II1.Explain briefly any four CPU scheduling algorithms with examples
2.Explain Banker's deadlock-avoidance algorithm with an illustration
3.xplain what semaphres are, their usage,implemention givn to avoid busy waiting and binary semaphores
4.Define critical section problem and discuss the three requirements that a
solution to the critical section problem must satisfy
UNIT III1.Discuss the following page replacement algorithms, giving a suitable page
reference string (i) LRU (ii) FIFO and (iii) Optimal
2.Explain the most commonly used techniques for structuring the page table
3.Explain the concept of demand paging. How can demand paging be
implemented with virtual memory?
4.Explain in detail about memory management in linux
UNIT IV1.Explain the various directory structure in detail
2.Explain in detail the free space management with neat diagram
3.Explain various file allocation methods in detail.
4.what are the directory implementation techniques available ?Explain in detail
UNIT V1.Explain in detail various disk scheduling algorithms with suitable example
2.Explain the services provided by a kernel I/O subsystem
3.Write short notes on the following (i) I/O Hardware (ii) RAID structure