Practice Example Of Dfs Pre And Post Numbers (21.1.6) - Depth First Search (DFS)

Practice: Example of DFS Pre and Post Numbers

Lesson 21.1.6Depth First Search (DFS)

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10 questions

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6 sample questions

Question 1.
What does DFS stand for?
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Think about how the algorithm processes nodes—deeply.
Question 2.
What data structure does DFS commonly use?
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Remember the acronym for keeping track of elements last added.
3Question 3.
What is the primary method of exploration used in DFS?
- Level Order
- Depth First
- Breadth First
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Recall the acronym when considering the strategy employed.
4Question 4.
True or False: DFS guarantees the shortest path between two vertices.
- True
- False
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Remember how the algorithm focuses on depth over breadth.
Question 5.
Given a graph with vertices and edges, implement DFS and identify the pre and post numbers for each vertex. How do these numbers help in identifying cycles?
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Look for revisits in your traversal log.
Question 6.
Consider a scenario where you have to analyze a social network graph for strong connectivity. Use DFS with pre and post numbers to determine critical nodes whose removal would disconnect the network.
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Check which nodes are revisited and how their removal affects connectivity in your DFS traversal.

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