Operating Systems MCQs Set-5

1. Operating System maintains the page table for
  • each process
  • each thread
  • each instruction
  • each address
2. Because of virtual memory, the memory can be shared among
  • processes
  • threads
  • instructions
  • none of the mentioned
3. _____ is the concept in which a process is copied into main memory from the secondary memory according to the requirement.
  • Paging
  • Demand paging
  • Segmentation
  • Swapping
4. The pager concerns with the
  • individual page of a process
  • entire process
  • entire thread
  • first page of a process
5. Swap space exists in
  • primary memory
  • secondary memory
  • CPU
  • none of the mentioned
6. A memory buffer used to accommodate a speed differential is called
  • stack pointer
  • cache
  • accumulator
  • disk buffer
7. Which one of the following is the address generated by CPU?
  • physical address
  • absolute address
  • logical address
  • none of the mentioned
8. Run time mapping from virtual to physical address is done by
  • memory management unit
  • CPU
  • PCI
  • none of the mentioned
9. Memory management technique in which system stores and retrieves data from secondary storage for use in main memory is called
  • fragmentation
  • paging
  • mapping
  • none of the mentioned
10. Program always deals with
  • logical address
  • absolute address
  • physical address
  • relative address