Which concept is defined as follows: a tree-like data structure used to efficiently store and retrieve strings, especially for prefix matching?
Difficulty: Hard
About this MCQ
This Hard Data Structures MCQ checks one syllabus fact.
The question is: “Which concept is defined as follows: a tree-like data structure used to efficiently store and retrieve strings, especially for prefix matching?”
The accepted answer is A. Trie. Trie is the person, body, or term that satisfies “Which concept is defined as follows: a tree-like data structure used to efficiently store and retrieve strings, especially for prefix matching” (option A). Option B (“Heap”) does not match the stem; it is a near-miss used to catch incomplete recall of Trie. Option C (“Linked list”) does not match the stem; it is a near-miss used to catch incomplete recall of Trie. Remaining alternatives (AVL tree) fall outside the same rule and should be eliminated once Trie is identified. Data Structures questions of this type reward precise definitions rather than approximate associations. Data Structures recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
- A. Trie ✓
- B. Heap
Why not B: “Heap” is not correct. The accepted answer is A. Trie. Trie is the person, body, or term that satisfies “Which concept is defined as follows: a tree-like data structure used to efficiently store and retrieve strings, especially for pre
- C. Linked list
Why not C: “Linked list” is not correct. The accepted answer is A. Trie. Trie is the person, body, or term that satisfies “Which concept is defined as follows: a tree-like data structure used to efficiently store and retrieve strings, especially for pre
- D. AVL tree
Why not D: “AVL tree” is not correct. The accepted answer is A. Trie. Trie is the person, body, or term that satisfies “Which concept is defined as follows: a tree-like data structure used to efficiently store and retrieve strings, especially for pre
Correct answer
A. Trie
Explanation
Trie is the person, body, or term that satisfies “Which concept is defined as follows: a tree-like data structure used to efficiently store and retrieve strings, especially for prefix matching” (option A). Option B (“Heap”) does not match the stem; it is a near-miss used to catch incomplete recall of Trie. Option C (“Linked list”) does not match the stem; it is a near-miss used to catch incomplete recall of Trie. Remaining alternatives (AVL tree) fall outside the same rule and should be eliminated once Trie is identified. Data Structures questions of this type reward precise definitions rather than approximate associations. Data Structures recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
Source: Data Structures Official Reference Guide
Tags: computer science, data structures, algorithms, programming
Submitted by: MCQsHub Editorial
Related MCQs
- Select the correct name for: a binary tree in which each node's left subtree contains smaller values and right...
- The following statement describes a specific concept. What is it called? a linked list in which the last node...
- In computer science, Heap refers to which of the following?
- Select the accurate description of Circular linked list.
- What term describes the following? a tree-based structure that satisfies the heap property, often used to impl...
- Which term refers to a linked list where each node has pointers to both the next and previous nodes?