Pattern matching (KMP, Rabin-Karp) MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 14, 2025

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1. : What is the main purpose of the Knuth-Morris-Pratt (KMP) algorithm?



2. : Which of the following best describes the Rabin-Karp algorithm?



3. : What is the worst-case time complexity of the KMP algorithm?



4. : In the KMP algorithm, what does the “partial match table” help to achieve?



5. : What is the main advantage of using the Rabin-Karp algorithm?



6. : Which of the following is true about the Rabin-Karp algorithm?



7. : What is the space complexity of the KMP algorithm?



8. : What is a hash collision in the context of the Rabin-Karp algorithm?



9. : Which of the following algorithms guarantees a worst-case linear time complexity?



10. : How does the KMP algorithm avoid unnecessary comparisons?



11. : In Rabin-Karp, how is the new hash value computed from the previous hash value?



12. : What is the main disadvantage of the Rabin-Karp algorithm?



13. : Which of the following is a key feature of the KMP algorithm?



14. : In the context of the KMP algorithm, what does the term “backtracking” refer to?



15. : What is the time complexity of the Rabin-Karp algorithm in the average case?



16. : Which pattern matching algorithm is more efficient for multiple pattern matching?



17. : What type of algorithm is KMP classified as?



18. : What is the length of the partial match table in KMP?



19. : Which of the following statements is true regarding the rolling hash in Rabin-Karp?



20. : In KMP, when a mismatch occurs after some matches, what does the algorithm utilize?



21. : What is the primary goal of pattern matching algorithms?



22. : Which algorithm would likely perform better on very large texts with many potential matches?



23. : How is the hash function chosen in the Rabin-Karp algorithm?



24. : What happens if a hash collision occurs in Rabin-Karp?



25. : In the KMP algorithm, how are the values in the partial match table calculated?



26. : What does the term “substring” refer to in string algorithms?



27. : Which of the following is a benefit of using KMP over brute-force methods?



28. : How does Rabin-Karp handle varying pattern lengths?



29. : What is the primary drawback of KMP in practical applications?



30. : Which of the following scenarios is most suitable for the Rabin-Karp algorithm?



31. : What is the typical use case for the KMP algorithm?



 

 

Data Structures MCQs

Basic Concepts

  1. Introduction to Data Structures
  2. Complexity Analysis MCQs

Linear Data Structures MCQs

  1. Arrays MCQs
  2. Linked Lists MCQs
  3. Stacks MCQs
  4. Queues MCQs

Non-Linear Data Structures MCQs

  1. Trees MCQs
  2. Heaps MCQs
  3. Graphs MCQs

Hashing MCQs MCQs

  1. Hash Tables

Sorting and Searching Algorithms MCQs 

  1. Sorting Algorithms MCQs
  2. Searching Algorithms MCQs

Miscellaneous

  1. Memory Management in data structures MCQs
  2. String Manipulation Algorithms MCQs
  1. Data Structures MCQs 1
  2. Data Structures MCQs 2
  3. Data Structures MCQs 3
  4. Data Structures MCQs 4
  5. Data Structures MCQs 5
  6. Stacks Solved MCQs
  7. Queues MCQs
  8. pointer mcqs
  9. Array MCQs

 

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