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Operating System (OS) important questionsMost repeated in SPPU papers

These 7 questions appeared in more than one SPPU Operating System paper we have: 6 papers, from Oct 2022 to Nov 2025. The most-asked come first. Each one links to the papers it was asked in.

All OS papers and notes

Repeated questions

Endsem questions (7)

  1. 3×asked

    State the Producer-Consumer problem and give a solution using semaphore and mutex.

    May 2025 ·May 2024 ·Nov 2022

  2. 2×asked

    Explain different file allocation methods. 3

    Nov 2025 ·Nov 2022

  3. 2×asked

    What is deadlock? What are the necessary conditions for deadlock? How deadlock is detected in a system having single instance of each type?

    Nov 2025 ·Nov 2022

  4. 2×asked

    Assume a disk with 400 tracks, and the disk request has random requests as follows: 53, 59, 42, 21, 310, 350, 380, 184. Find the no. of tracks traversed and average seek length if i) FIFO ii) SSTF iii) CLOOK is used, and initially head is at track no.100.

    May 2025 ·May 2024

  5. 2×asked

    Explain the data structures required for a two-pass assembler with their usage in detail.

    May 2025 ·Nov 2022

  6. 2×asked

    Why I/O buffering is necessary? State and explain different I/O buffering techniques.

    May 2025 ·Nov 2022

  7. 2×asked

    What is system software? Explain any four system software in brief? 

    May 2024 ·Nov 2022

Questions count as repeated when their wording matches closely across papers. Numericals that depend on a figure are left out, since the figure changes from paper to paper.