B.Sc. (Computer Science) Sem 3 Principles of Operating Systems Nov 2024 Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 Attempt any four: marks each) 20 marks
   • 1. What is an Operating System? Explain the Role of the Operating Svtem
   • 2. Explain the 5-state process model with a neat diagram
   • 3. Write a short note on Scheduling Queues
   • 4. Write a short note on Real Time Operating Systems
   • 5. What are the operations performed on Creation? Explain
   • 6. What is a Thread? What are the benefits of Multithreading?
2. Q2 Attempt any four: (5 marks each) ! Explain the Critical Section Problem 20 marks
   • 2. Write a short note on Bounded Buffer Problem
   • 3. Explain the Round Robin (RR) scheduling algorithm. Consider the following processes alongwith their arrival time and CPU burst time in average wait time, turnaround time and average turnaround time. Also draw the Gantt Chart
   • 4. How can Mutex locks be used to solve the critical section problem? Explain
   • 5. Whatis the use of resource allocation graph? Explain with a diagram Consider a system with five processes Po through and three resource types A, B, and C. Resource type A has ten instances, resource type B has five instances, and resource type C has seven instances. Give the sequence of process execution so that the system is in safe state using Bankers Algorithm. Suppose that, at time To, the following snapshot of the system has been taken:
3. Q3 Attempt any four: (5 marks each) 20 marks
   • 1. Explain the paging hardware with the help of a neat diagram. What are the advantages and disadvantages of Paging?
   • 2. Write a note on segmentation and segmentation hardware with the help of neat diagrams. What are the advantages and disadvantages of
   • 3. Explain the following File Allocation Methods on a disk:- Contagious,
   • 4. Explain the various techniques of free space management on a disk
   • 5. What are the various operations that can be performed on a file?
   • 6. Define the following terms related to virtual memory:
   • c. Virtual address
   • d. Page fault
4. Q4 Attempt any five: (3 marks each) 15 marks
   • 1. Write a short note on the layered Operating System structure
   • 2. the System Calls related to File Management with examples
   • 3. Explain the Time Sharing Computing Environments
   • 4. What are the different types of Semaphores? Explain
   • 5. Explain the following terms related to CPU scheduling:
   • b. Dispatcher
   • c. Dispatch Latency
   • 6. Define the following terms related to virtual memory:
   • a. Virtual address
   • b. Page fault

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