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21.1.1. Depth First Search (DFS)
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Practice test
11 questions on this section. Wrong answers show you what to read again.
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Revision test
Mixed questions from across the chapter. Your answers get marked.
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Flashcard drill
3 cards from this lesson. Good the night before a test.
Try these first
- 1.
What does DFS stand for?
Hint
Think about how we explore data structures.
- 2.
What is the primary data structure used in DFS?
Hint
Remember the Last In First Out concept.
- 3.
What is the time complexity of DFS using an adjacency list?
- O(n^2)
- O(n + m)
- O(n)
Hint
Consider both vertices and edges.
- 4.
True or False: Depth First Search guarantees the shortest path in a graph.
- True
- False
Hint
Review the primary goals of each algorithm.
- 5.
Implement a DFS algorithm to detect cycles in a directed graph.
Hint
Consider how backtracking helps identify cycles.
- 6.
Given a large graph, analyze how changing from adjacency list to adjacency matrix affects DFS performance.
Hint
Reflect on efficiency and data representation.
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
1 more question available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting