Breadth-first search always expands the ______ node in the current fringe of the search tree. A. Shallowest B. Child node C. Deepest D. Minimum cost

[amp_mcq option1=”Shallowest” option2=”Child node” option3=”Deepest” option4=”Minimum cost” correct=”option1″]

The correct answer is: A. Shallowest

Breadth-first search (BFS) is an algorithm for traversing a graph. It starts at the root node and explores all of the nodes that are connected to the root node before exploring any other nodes. This process continues until all of the nodes in the graph have been explored.

The shallowest node in the current fringe of the search tree is the node that is closest to the root node. This is because BFS explores nodes in a level-by-level order, starting with the nodes that are closest to the root node.

The other options are incorrect because they do not describe the behavior of BFS.

  • Option B: The child node is the node that is connected to the current node. BFS does not explore child nodes until it has explored all of the nodes that are connected to the current node.
  • Option C: The deepest node in the current fringe of the search tree is the node that is farthest from the root node. BFS does not explore the deepest nodes until it has explored all of the nodes that are closer to the root node.
  • Option D: The minimum cost node is the node that has the lowest cost to reach from the root node. BFS does not consider the cost of nodes when exploring the search tree.
Exit mobile version