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Q1. When do page faults take place? describe the actions taken by the operating system when a page fault takes place.

Q2. describe why are segmentation and paging sometimes joined to one scheme?

Q3. Describe the given allocation algorithms by giving an appropriate illustration:

a) First-fit
b) Best-fit
c) Worst-fit

Q4. Describe some of the most common schemes for defining the logical structure of a directory.

Q5. Assume that a disk drive has 5,000 cylinders, numbered 0 to 4999. The drive is presently serving a request at cylinder 143 and the previous request was at cylinder 125. The queue of pending requests, in FIFO order, is:

86, 1470, 913, 1774, 948, 1509, 1022, 1750, 130

Beginning from the present head position, illustrate the total seek distance (in cylinders) that the disk arm moves to satisfy all pending requests for each of the given disk-scheduling algorithms?

a) FCFS
b) SSTF

Q6. Illustrate the deadlock-detection algorithm in the fully distributed system.

Operating System, Computer Science

  • Category:- Operating System
  • Reference No.:- M911558

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