OS Unit 4 – Memory Management Previous Year Questions

On this page, you will find all the most important and most asked questions from unit 4 of the Operating System subject. 


  1. What do you mean by memory protection.
  2. What is address binding.
  3. Write the difference between logical address space and physical address space.
  1. What do you understand by overlays.
  2. What do you mean by swapping?
  3. Explain the single partitioning scheme in memory.
  4. Explain the multiple partitioning scheme in memory. Write its advantage and disadvantage.
  1. What do you mean by dynamic partitioning. Write its advantage and disadvantage.
  2. What is external and internal fragmentation?
  3. Discuss the dynamic memory allocation technique.
  4. Explain the term paging. How page table is implemented?
  5. Discuss the cache memory organization.
  6. Write the different technique for page table implementation.
  7. What do you mean by segmentation?
  8. What do you mean by virtual memory? How memory management unit translate the virtual address in the physical address.
  9. What is demand paging? write its advantage.
  10. Write the steps for handling a page fault.
  11. What do you mean by EAT(effective Access Time).
  12. Write the difference between Paging and Segmentation.
  13. What is page replacement policy?
  14. Explain the various page replacement algorithm with suitable examples.
  15. What do you mean by Belady’s anomaly?
  16. Write a note on Thrashing.