2023 Document Preview Operating Systems I Paging and Segmentation A In a table | Assignment Collections

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Operating Systems I- Paging and Segmentation: A- In a table forma, compare between segmentation and virtual memory organizations in terms of the memory structure, advantages, and disadvantages. Which approach would better support the needs of modern operating environment? Why? IV- File System: Please answerOnly Two of the following questions that are related to the file system: In table format, compare between online backup and back up cycle methods in terms of basic idea, advantages, and disadvantages. In table format, discuss the advantages, disadvantages, and the performance of the bit map space management approach when it is used for the main memory and the disk. 3- In table format, compare between the contiguous allocation and the I-nodes file implementation approaches in terms of basic idea, advantages, and disadvantages. B- What is file system reliability? Explain the roles of error handling, back up, and file checker methods in supporting the file system reliability? C-A file system checker has built up its counters as shown next: Block# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 In-use 1 0 1 0 1 1 1 3 1 0 1 1 1 1 0 1 Free 0 2 0 0 0 0 0 0 0 1 0 0 0 1 1 0 Discuss ALL the errors shown in the above counters and the corresponding solutions. V- Deadlock: A- Given the sequence of resource requests below, draw the resource allocation graph and answer the following questions: – Process A is holding resource S and is requesting resource X. – Process B is holding resources X, Y and is requesting resource W. – Process C is holding resource W and is requesting resource Z. – Process D is holding resource Z and is requesting resource Y and S. 1- List the reasons which causes deadlock to occur in multiprogramming environment. 2-Discuss how can the deadlock detection algorithm for one resource find out if a deadlock exists in the above sequence? 3- List the deadlocked processes. 4- Discuss at least…