Data Structure Test Set 10
Q46➡ | In a depth-first traversal of a graph G with n vertices, k edges are marked as tree edges. The number of connected components in G is |
i ➥ k |
ii ➥ k + 1 |
iii ➥ n – k – 1 |
iv ➥ n – k |
Q47➡ | The Breadth First Search algorithm has been implemented using the queue data structure. One possible order of visiting the nodes of the following graph is |
i ➥ MNOPQR |
ii ➥ NQMPOR |
iii ➥ QMNPRO |
iv ➥ QMNPOR |
Q48➡ | Let G be a graph with n vertices and m edges.What is the tightest upper bound on the running time of Depth First Search on G, when G is represented as an adjacency matrix? |
i ➥ Θ(n) |
ii ➥ Θ(n+m) |
iii ➥ Θ(n2) |
iv ➥ Θ(m2) |
Q49➡ | The most efficient algorithm for finding the number of connected components in an undirected graph on n vertices and m edges has time complexity |
i ➥ Θ(n) |
ii ➥ Θ(m) |
iii ➥ Θ(m+n) |
iv ➥ Θ(mn) |
Q50➡ | Consider the following graph: Among the following sequences: (I) a b e g h f (II) a b f e h g (III) a b f h g e (IV) a f g h b e Which are depth first traversals of the above graph? |
i ➥  I, II and IV only |
ii ➥ I and IV only |
iii ➥ II, III and IV only |
iv ➥ I, III and IV only |
Weekly Test GATE/NTA NET CSA
46, ii
47, ii
48, iii
49, i
50, i
47:iv