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# Assignment 3 - Computer Science 314: Operating Systems
You should submit this assignment after you have finished Unit 3. It is worth 10% of your final grade.
Instructions: Please answer the following questions in complete sentences. Your answer for each question should be about 150 words. (100 marks total)
1. What are the advantages of using dynamic loading? (6 marks)
1. Explain the basic method for implementing paging. (8 marks)
1. Briefly describe the segmentation memory management scheme. How does it differ from the paging memory management scheme in terms of the user’s view of memory? (8 marks)
1. Explain the distinction between a demand-paging system and a paging system with swapping. (8 marks)
1. How does the second-chance algorithm for page replacement differ from the FIFO page replacement algorithm? (8 marks)
1. Explain how copy-on-write operates. (8 marks)
1. If you were creating an operating system to handle files, what are the six basic file operations that you should implement? (8 marks)
1. To create a new file, an application program calls on the logical file system. Describe the steps the logical file system takes to create a file. (8 marks)
1. How is a hash table superior to a simple linear list structure? What issue must be handled by hash table implementation? (8 marks)
1. What are the factors influencing the selection of a disk-scheduling algorithm? (8 marks)
1. Explain the disadvantage(s) of the SSTF scheduling algorithm. (8 marks)
1. Explain the concepts of a bus and a daisy chain. Indicate how these concepts are related. (8 marks)
1. What are the three reasons that buffering is performed? (6 marks)
## Sources
* [Operating System Concepts][os-book]
[os-book]: https://www.os-book.com/OS10/index.html
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