Operating Systems MCQs Set-9

1. What is thrashing?
  • A high paging activity is called thrashing.
  • A high executing activity is called thrashing
  • A extremely long process is called thrashing
  • A extremely long virtual memory is called thrashing
2. Symptoms of swap-file problems include extremely slow system speed and a disk that is constantly being accessed, which is referred to as ______________.
  • Clocking
  • Thrashing
  • Booting
  • Filtering
3. What hole will allocates in “Worst-Fit” algorithm of memory management?
  • It allocates the smaller hole than required memory hole
  • It allocates the smallest hole from the available memory holes
  • It allocates the largest hole from the available memory holes
  • It allocates the exact same size memory hole
4. Which of the following is the allocation method of a disk space?
  • Contiguous allocation
  • Linked allocation
  • Indexed allocation
  • All of the Above
5. Which of the following concept is best to preventing page faults?
  • Paging
  • The working set
  • Hit ratios
  • Address location resolution
6. Poor response time are usually caused by
  • Process busy
  • High I/O rates
  • High paging rate
  • Any of the above
7. Virtual memory typically located on
  • RAM
  • CPU
  • Flash card
  • Hard drive
8. What is contained in the page table?
  • Base address of each frame and corresponding page number
  • Memory address and corresponding page number
  • File name and corresponding page number
  • None of Above
9. Tree structure displays the
  • File only
  • Directory only
  • File and directory name
  • None of above
10. Multiprogramming systems:
  • Are easier to develop than single programming systems
  • Execute each job faster
  • Execute more jobs in the same time period
  • Are used only one large mainframe computers.