Explain the issues involved in Round Robin scheduling if the time quantum is too short and time quantum is too long?
[3 marks]Write four principal events those create the process.
[4 marks]Explain the memory management algorithm (i) first fit (ii) next fit (iii) best fit (iv) worst fit
[7 marks]Explain virtualization concept in Android Virtual machine.
[3 marks]Write C-SCAN disk scheduling algorithm.
[4 marks]Explain paging – technique used by virtual memory systems.
[7 marks]Explain segmentation – how to provide machine with completely independent address spaces.
[7 marks]Define File Descriptor. Differentiate between Block special File and Character Special File.
[3 marks]Consider five jobs, Athrough Ewith run times 2,4,1,1 and 1 respectively. Their arrival times are 0,0,3,3,3. Calculate the average waiting time if jobs are run in order B,C,D,Eand A.
[4 marks]Differentiate between a process and a thread. Explain the thread model in Operating System.
[7 marks]Differentiate between Multiprogramming, Multitasking and time sharing operating system.
[3 marks]There are four jobs A,B,C,Dwith run times 8,4,4 and 4 minutes, respectively. Calculate the average turnaround time considering them in the order A-.>B->C->Dand considering shortest job first.
[4 marks]Describe three methods for doing I/Oin Operating System.
[7 marks]Define the role of kernel in UNIX/LINUX operating system.
[3 marks]Write the conditions which terminate the processes.
[4 marks]Explain Peterson’s solution.
[7 marks]Explain Directory structure in UNIX/LINUX operating system.
[3 marks]Write the four conditions that must hold for there to be a resource deadlock.
[4 marks]What is a Producer Consumer Problem? How to Solve Producer-Consumer problem using Semaphore?
[7 marks]How virtualization supports multiple operating systems simultaneously on a single hardware platform?
[3 marks]Describe different process states. Explain the transitions between these states.
[4 marks]Explain the difference between FIFO and LRU page replacement policy.
[7 marks]Which two types of resources are available in operating system?
[3 marks]Write SCAN disk scheduling algorithm.
[4 marks]Explain Banker’s algorithm with suitable example.
[7 marks]