Depth-First Search Algorithm
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Questions and Answers

In the depth-first search (DFS) approach, how is the frontier managed?

  • As a stack data structure (correct)
  • As a queue data structure
  • As a linked list
  • As a binary tree

    • What is the catchphrase associated with managing the frontier in depth-first search?

  • Priority-based removal
  • First-in first-out
  • Random removal
  • Last-in first-out (correct)

    • Which direction does a depth-first search algorithm exhaust first before trying another direction?

  • The left direction (correct)
  • One direction randomly
  • The right direction
  • Every direction simultaneously

    • What data structure is associated with managing the frontier in breadth-first search?

    <p>Queue</p> Signup and view all the answers

    Which search algorithm aims to go as deep as possible in one direction before exploring other directions?

    <p>Depth-first Search</p> Signup and view all the answers

    What is the outcome of considering the last node added to the frontier first in depth-first search?

    <p>Faster exploration of all directions</p> Signup and view all the answers

    What is a disadvantage of depth-first search?

    <p>It may take the longest possible time before reaching a solution.</p> Signup and view all the answers

    Which data structure is used to manage the frontier in breadth-first search?

    <p>Queue</p> Signup and view all the answers

    In what scenario will depth-first search take the least possible time to find a solution?

    <p>When it always chooses the right path by chance.</p> Signup and view all the answers

    Which algorithm follows multiple directions at the same time, taking one step in each direction?

    <p>Breadth-first Search</p> Signup and view all the answers

    What happens if the frontier is empty in a search algorithm?

    <p>The search will terminate because there is no solution.</p> Signup and view all the answers

    Which algorithm removes a node from the frontier using a queue data structure?

    <p>Breadth-first Search</p> Signup and view all the answers

    What type of algorithm is Greedy Best-First Search?

    <p>Informed search algorithm</p> Signup and view all the answers

    Which characteristic distinguishes Greedy Best-First Search from Depth-first and Breadth-first Search?

    <p>Expands the node closest to the goal based on a heuristic function</p> Signup and view all the answers

    What is the role of the heuristic function in Greedy Best-First Search?

    <p>Estimates how close the next node is to the goal</p> Signup and view all the answers

    What type of algorithm is Depth-first Search?

    <p>Uninformed search algorithm</p> Signup and view all the answers

    How does Breadth-first Search differ from Greedy Best-First Search?

    <p>Traverses level by level rather than depth-wise</p> Signup and view all the answers

    In what way do informed search algorithms differ from uninformed search algorithms?

    <p>Informed algorithms utilize problem-specific information</p> Signup and view all the answers

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