Edit Distance Problem MCQ

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• Consider the two strings “”(empty string) and “abcd”. What is the edit distance between the two strings?
  ক

  0

  খ

  4

  গ

  2

  ঘ

  3
• Consider the strings “monday” and “tuesday”. What is the edit distance between the two strings?
  ক

  3

  খ

  4

  গ

  5

  ঘ

  6
• Suppose each edit (insert, delete, replace) has a cost of one. Then, the maximum edit distance cost between the two strings is equal to the length of the larger string.
  ক

  True

  খ

  False
• In which of the following cases will the edit distance between two strings be zero?
  ক

  When one string is a substring of another

  খ

  When the lengths of the two strings are equal

  গ

  When the two strings are equal

  ঘ

  The edit distance can never be zero
• Which of the following is an application of the edit distance problem?
  ক

  Approximate string matching

  খ

  Spelling correction

  গ

  Similarity of DNA

  ঘ

  Approximate string matching, Spelling Correction and Similarity of DNA
• The edit distance satisfies the axioms of a metric when the costs are non-negative.
  ক

  True

  খ

  False
• Which of the following methods can be used to solve the edit distance problem?
  ক

  Recursion

  খ

  Dynamic programming

  গ

  Both dynamic programming and recursion

  ঘ

  Greedy Algorithm