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Information Systems Design and Management How to make a simple index for sequential file?

Information Systems Design and Management

  1. How to make a simple index for sequential file?
  2. Explain the basic operations to maintain an index file. (record addition, deletion, update)
  3. what are pros and cons of the Secondary index ?                                                                                                        
  4. what is the Co-sequential process of 2 files in terms of matching?
  5. what is Co-sequential process of 2 files in terms of merging ?
  6. briefly explain how ledger program works
  7. explain the k-way merging algorithm
  8. How heap sort works? (re-heap up for insertion/construction, and re-heap down for deletion/soring)
  9. The basic idea of merge sort, why it is chosen as the external sorting algorithm for file operations? Seek time for each step?
  10. What is AVL tree?
  11. explain with examples AVL tree operation (tree insertion, single rotation, and double rotation)
  12. what is paged binary tree? What are the pros and cons?
  13. What is B-tree? What are the differences between data structure B-tree, and file structure B-tree?
  14. explain B-tree insertion, search and deletion
  15. what is the Time complexity for operating on B-tree

please provide full answers to these question with example and explanation please


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