Home › AKTU PYQ › Operating System › Important Questions › Unit 5

Operating System Unit 5 – I/O Management and File Systems: important questions for AKTU

Unit 5 (I/O Management and File Systems) questions that AKTU repeats most often. This unit carries about 30 marks per paper. Start with the repeated questions, then the most asked topics.

Most repeated Unit 5 questions

  • Consider a disk queue with requests for I/O to blocks on cylinders 47, 38, 121, 191, 87, 11, 92, 10. The C-LOOK scheduling algorithm is used. The head is initially at cylinder number 63, moving towards larger cylinder numbers on its servicing pass. The cylinders are numbered from 0 to 199. Calculate the total head movement (in cylinders) required to service these requests. (7 marks, 2025, Disk Scheduling) – also asked in 2019, 2022, 2023
  • Explain the concept of file system management. Also, explain various file allocation and file access mechanisms in details. (10 marks, 2023, File System) – also asked in 2018, 2019, 2022
  • Explain file directories and directory structures in operating systems. (7 marks, 2025, File System) – also asked in 2023, 2024

Most important Unit 5 topic

  • File System (Unit 5: I/O Management and File Systems) – asked 12 times in 2018, 2019, 2022, 2023, 2024, 2025

Most asked Unit 5 topics

  • File System – asked 12 times
  • Disk Scheduling – asked 11 times
  • I/O Management – asked 4 times

More Unit 5 previous year questions

  • Discuss RAID 0, RAID 1, and RAID 5 in detail. (7 marks, 2025, Disk Scheduling)
  • Define an I/O subsystem? (2 marks, 2024, I/O Management)
  • Compare and contrast different disk storage technologies, such as HDDs and SSDs? (7 marks, 2024, Disk Scheduling)
  • Discuss the organization of files within file systems, including contiguous, linked, and indexed allocation methods? (7 marks, 2024, File System)
  • Explain the structure and management of file directories, including hierarchical and flat directory structures? (7 marks, 2024, File System)

Unit 5 syllabus topics

  • I/O Management
  • Disk Scheduling
  • File System