Practice Valid Topological Ordering (24.1.3) - Topological Ordering of Directed Acyclic Graphs (DAG)

Practice: Valid Topological Ordering

Lesson 24.1.3Topological Ordering of Directed Acyclic Graphs (DAG)

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the in-degree of a vertex?
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Think about how many edges arrive at a vertex.
Question 2.
Can a vertex with zero in-degree be processed first in topological sorting?
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If no tasks depend on it, it can go first!
3Question 3.
What is the primary goal of topological sorting?
- To find the shortest path
- To order vertices respecting dependencies
- To find cycles in a graph
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Think about the purpose of ordering in task management.
4Question 4.
True or False: A graph must be acyclic to perform a topological sort.
- True
- False
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Remember the nature of cycles and their constraints.
Question 5.
Design an algorithm to implement topological sorting with an input of edges in a directed graph. What are the expected outcomes?
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Think about how you can maintain order while processing.
Question 6.
Consider a scenario with tasks {A, B, C, D} and dependencies {A->B, A->C, B->D}. What is a possible topological order?
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Every time you select a task, ensure no others depend on it that haven't been completed.

4 more questions in this section. Enroll free to practise them all.