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


47:iv
46, ii
47, ii
48, iii
49, i
50, i