Edge which connects a vertex to an ancestor in the DFS tree is termed asa)Back edgesb)Cross edgesc)None of the mentionedd)Forward edges

Edge which connect a vertex to a vertex that is neither its ancestor nor its descendant.a)Forward edgesb)Back edgesc)Cross edgesd)None of the mentioned

dge which connect a vertex to a vertex that is neither its ancestor nor its descendant.a)Cross edgesb)None of the mentionedc)Back edgesd)Forward edges

The result of a depth-first search of a graph can be conveniently described in terms of a spanning tree of the vertices reached during the search. Based on this spanning tree, the edges of the original graph can be divided into three classes: forward edges, which point from a node of the tree to one of its descendants, back edges, which point from a node to one of its ancestors, and cross edges, which do neither. Sometimes tree edges, edges which belong to the spanning tree itself, are classified separately from forward edges. If the original graph is undirected then all of its edges are tree edges or back edges.

A DFS of a directed graph always produces the same number of tree edges, i.e., independent of the order in which vertices are considered for DFS. State true or false.a)Trueb)False

An articulation point in a connected graph is a vertex such that removing the vertex and its incident edges disconnects the graph into two or more connected components. Let T be a DFS tree obtained by doing DFS in a connected undirected graph G. Which of the following options is/are correct?Note: This kind of question will be helpful in clearing CTS recruitment.