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Which of the following is a characteristic of Depth-First Search (DFS)?

Practice Questions

Q1
Which of the following is a characteristic of Depth-First Search (DFS)?
  1. Uses a queue
  2. Can be implemented using recursion
  3. Always finds the shortest path
  4. Visits nodes level by level

Questions & Step-by-Step Solutions

Which of the following is a characteristic of Depth-First Search (DFS)?
  • Step 1: Understand that Depth-First Search (DFS) is a method for exploring nodes in a graph or tree.
  • Step 2: Recognize that DFS starts at a root node and explores as far down one branch as possible.
  • Step 3: Learn that if it reaches a node with no unvisited neighbors, it backtracks to the previous node.
  • Step 4: Note that DFS can be implemented using recursion, which means it can call itself to go deeper into the graph.
  • Step 5: Realize that this recursive approach allows DFS to explore all nodes along a path before returning to explore other paths.
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