In Depth First Search we examine _____.a)All of its children’s and then examine the root nodeb)The root node and then traverse the neighboursc)The neighbours and then the root noded)The starting node and then go deeper and deeper

"The search first begins from the root node and the first one of the child node's sub-tree is completely traversed. That is, first all the one-sided nodes are checked, and then the other sided nodes are checked."Which search algorithm is described in the above definition?1 pointThe Breadth First Search (BFS)The Depth First Search (DFS)The A* searchNone of the aboveOther:

Consider a complete binary tree with 7 nodes. Let A denote the set of first 3 elements obtained by performing Breadth-First Search (BFS) starting from the root. Let B denote the set of first 3 elements obtained by performing Depth-First Search (DFS) starting from the root. The value of ∣A−B∣ is _____________.

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.

What is in-order traversal?the root node is visited first, then the left subtree and finally the right subtreethe left subtree is visited first, then the root and later the right sub-treeleft subtree is visited first, then the right subtree and finally the root nodeI don't know

In a binary tree, the node that is directly above another node is called the _____ of that node.a)parentb)leafc)childd)sibling