Python Interview Questions · interview question
In Python, which comparison about Queues and Breadth-First Search is accurate?
Multiple choiceEasypython-interview-2026interviewpythoncomparison
Answer and explanation
Correct answer
B. BFS preserves shortest-path-by-edge-count behavior in unweighted graphs, while DFS explores depth before breadth.
Why
BFS preserves shortest-path-by-edge-count behavior in unweighted graphs, while DFS explores depth before breadth. This is the comparison that usually separates memorization from understanding.
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