23.2 - Directed Acyclic Graphs (DAGs)
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Practice Questions
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Define a Directed Acyclic Graph (DAG).
💡 Hint: Remember the key property of a DAG.
What does in-degree and out-degree refer to?
💡 Hint: Think of how edges point to or away from a task.
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Interactive Quizzes
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What is a Directed Acyclic Graph?
💡 Hint: Think about the meaning of acyclic.
Is it possible to topologically sort a graph with cycles?
💡 Hint: Consider if you can complete a task if it depends on itself.
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Challenge Problems
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Create a DAG for scheduling a software development project with the following tasks: Design, Code, Test, Deploy. Assume Design must be completed before Code, and Code must be completed before Test. How would you represent this graphically?
💡 Hint: Draw the tasks and the dependencies between them.
Explain how the presence of a cycle affects the workflow in a project management scenario. What strategies can be employed to prevent cycles in task dependencies?
💡 Hint: Consider what happens when one task relies on another that also depends back on the first.
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