🔒

Exam Module Subscription Required

You need an active Exam Module Subscription to access this content. Subscribe now to unlock the exam materials and continue your preparation.

Topic Wise Question Bank
All Topics
    • ☆
      1
      Operating SystemProcess Scheduling Algorithm

      A system has three processes with the following arrival times and CPU burst times:

      ProcessArrival Time (ms)Burst Time (ms)
      P105
      P213
      P322

      Using the First-Come, First-Served (FCFS) CPU scheduling algorithm, calculate the average waiting time and the average turnaround time.

      CB, O(IT-24), 26 | Officer (IT)


    • ☆
      2
      Operating SystemProcess Scheduling Algorithm
      Operating System Round Robin: (Quantum number =3), 4 job (job1, job2, job3, job4), Arrival time: 0,2,8,5; Burst time: 9, 7, 2, 3. What is the average waiting time?
      CB, AE(IT)/AHME/SO, 21 | AME/ANE/AE

    • ☆
      3
      Operating SystemProcess Scheduling Algorithm
      Operating System (OS) scheduling is the key concept of multiprogramming. List and briefly define the major types of OS scheduling.
      CB, O(IT), 20 | Officer (IT)

      Major Types of Operating System (OS) Scheduling

      Answer:

      OS Scheduling is the process of selecting which process will execute on the CPU. It is a key concept of Multiprogramming because it improves CPU utilization and system performance.

      Major Types of OS Scheduling

      Scheduling TypeDefinition
      Long-Term Scheduler (Job Scheduler)Selects jobs from secondary storage and loads them into main memory for execution.
      Short-Term Scheduler (CPU Scheduler)Selects a process from the ready queue and allocates the CPU to it.
      Medium-Term SchedulerTemporarily removes (swaps out) processes from memory and later brings them back to improve system performance.

      The Long-Term Scheduler controls the degree of multiprogramming, the Short-Term Scheduler allocates the CPU, and the Medium-Term Scheduler manages memory efficiently through swapping.


    • ☆
      4
      Operating SystemProcess Scheduling Algorithm
      Calculate The Average Waiting Time of SJF scheduling algorithm.
      ProcessBurst TimeArrival Time
      P1103
      P211
      P323
      P414
      P552

      (i) Average waiting time for FCFS
      (ii) Preemptive SJF
      (iii) Round Robin (Quantum time: 3) scheduling algorithm
      Janata, ASA, 21 | AME/ANE/AE



    • ☆
      5
      Operating SystemProcess Scheduling Algorithm

      ১ (গ) নিচের সারণীটি দেখুন-

      Process

      Burst Time (milli second)

      Priority

      P1

      15

      3

      P2

      2

      1

      P3

      4

      3

      P4

      2

      4

      P5

      8

      2

      সমস্থ process একই সাথে 0 সময়ে এসে পৌঁছে।

      1. i) FCFS এবং SJF Scheduling algorithm ব্যবহার করে Gantt Chart এর মাধ্যমে process গুলোর execution দেখান।
      2. ii) উপরের উভয় algorithm এর জন্য প্রত্যেকটি process এর turnaround সময় নির্ণয় করুন।
      BPSC_MoHA_AP, 26 | Assistant Programmer (BPSC)
    • ☆
      6
      Operating SystemProcess Scheduling Algorithm

      Job arrival time and execution time of Operating system tasks table is given, find out

      JobArrival TimeExecution Time
      A010
      B37
      C53
      Average waiting time
      (i) FCFS
      (ii) Preemptive SJF
      (iii) Round Robin (Quantum time: 3)
      Rupali, ANE, 21 |
      (i) FCFS:
      (ii)SJF

      (iii) Round Robin:

Leave a Comment

WhatsApp Telegram Messenger