Questions
Question 1 Multiple Choice (Single Answer)
What is the adjacency matrix of a graph?
- A matrix whose entries are the weights of the edges of the graph.
- A matrix whose entries are the degrees of the vertices of the graph.
- A matrix whose entries are the distances between the vertices of the graph.
- A matrix whose entries are the eigenvalues of the graph.
Question 2 Multiple Choice (Single Answer)
What is the degree of a vertex in a graph?
- The number of edges incident to the vertex.
- The number of vertices adjacent to the vertex.
- The sum of the weights of the edges incident to the vertex.
- The maximum distance between the vertex and any other vertex in the graph.
Question 3 Multiple Choice (Single Answer)
What is the Laplacian matrix of a graph?
- A matrix whose entries are the degrees of the vertices of the graph.
- A matrix whose entries are the distances between the vertices of the graph.
- A matrix whose entries are the eigenvalues of the graph.
- A matrix whose entries are the weights of the edges of the graph.
Question 4 Multiple Choice (Single Answer)
What is the spectrum of a graph?
- The set of all eigenvalues of the adjacency matrix of the graph.
- The set of all eigenvalues of the Laplacian matrix of the graph.
- The set of all eigenvalues of the incidence matrix of the graph.
- The set of all eigenvalues of the distance matrix of the graph.
Question 5 Multiple Choice (Single Answer)
What is the chromatic number of a graph?
- The minimum number of colors needed to color the vertices of the graph so that no two adjacent vertices have the same color.
- The maximum number of colors needed to color the vertices of the graph so that no two adjacent vertices have the same color.
- The number of vertices in the graph.
- The number of edges in the graph.
Question 6 Multiple Choice (Single Answer)
What is the clique number of a graph?
- The maximum number of vertices in a clique in the graph.
- The minimum number of vertices in a clique in the graph.
- The number of cliques in the graph.
- The size of the largest independent set in the graph.
Question 7 Multiple Choice (Single Answer)
What is the independence number of a graph?
- The maximum number of vertices in an independent set in the graph.
- The minimum number of vertices in an independent set in the graph.
- The number of independent sets in the graph.
- The size of the largest clique in the graph.
Question 8 Multiple Choice (Single Answer)
What is the domination number of a graph?
- The minimum number of vertices in a dominating set in the graph.
- The maximum number of vertices in a dominating set in the graph.
- The number of dominating sets in the graph.
- The size of the largest independent set in the graph.
Question 9 Multiple Choice (Single Answer)
What is the matching number of a graph?
- The maximum number of edges in a matching in the graph.
- The minimum number of edges in a matching in the graph.
- The number of matchings in the graph.
- The size of the largest independent set in the graph.
Question 10 Multiple Choice (Single Answer)
What is the vertex cover number of a graph?
- The minimum number of vertices in a vertex cover in the graph.
- The maximum number of vertices in a vertex cover in the graph.
- The number of vertex covers in the graph.
- The size of the largest independent set in the graph.
Question 11 Multiple Choice (Single Answer)
What is the edge cover number of a graph?
- The minimum number of edges in an edge cover in the graph.
- The maximum number of edges in an edge cover in the graph.
- The number of edge covers in the graph.
- The size of the largest independent set in the graph.
Question 12 Multiple Choice (Single Answer)
What is the Hamiltonian cycle problem?
- Given a graph, find a cycle that visits every vertex exactly once.
- Given a graph, find a cycle that visits every edge exactly once.
- Given a graph, find a path that visits every vertex exactly once.
- Given a graph, find a path that visits every edge exactly once.
Question 13 Multiple Choice (Single Answer)
What is the traveling salesman problem?
- Given a graph and a set of weights on the edges, find a tour that visits every vertex exactly once and minimizes the total weight of the tour.
- Given a graph and a set of weights on the edges, find a tour that visits every edge exactly once and minimizes the total weight of the tour.
- Given a graph and a set of weights on the vertices, find a tour that visits every vertex exactly once and minimizes the total weight of the tour.
- Given a graph and a set of weights on the vertices, find a tour that visits every edge exactly once and minimizes the total weight of the tour.
Question 14 Multiple Choice (Single Answer)
What is the maximum clique problem?
- Given a graph, find a clique of maximum size.
- Given a graph, find a clique of minimum size.
- Given a graph, find a clique of maximum weight.
- Given a graph, find a clique of minimum weight.
Question 15 Multiple Choice (Single Answer)
What is the maximum independent set problem?
- Given a graph, find an independent set of maximum size.
- Given a graph, find an independent set of minimum size.
- Given a graph, find an independent set of maximum weight.
- Given a graph, find an independent set of minimum weight.