{"id":17359,"date":"2024-04-15T05:12:19","date_gmt":"2024-04-15T05:12:19","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=17359"},"modified":"2024-04-15T05:12:19","modified_gmt":"2024-04-15T05:12:19","slug":"the-term-___________-is-used-for-a-depth-first-search-that-chooses-values-for-one-variable-at-a-time-and-returns-when-a-variable-has-no-legal-values-left-to-assign-a-forward-search-b-backtrack-sear","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-term-___________-is-used-for-a-depth-first-search-that-chooses-values-for-one-variable-at-a-time-and-returns-when-a-variable-has-no-legal-values-left-to-assign-a-forward-search-b-backtrack-sear\/","title":{"rendered":"The term ___________ is used for a depth-first search that chooses values for one variable at a time and returns when a variable has no legal values left to assign. A. Forward search B. Backtrack search C. Hill algorithm D. Reverse-Down-Hill search"},"content":{"rendered":"

[amp_mcq option1=”Forward search” option2=”Backtrack search” option3=”Hill algorithm” option4=”Reverse-Down-Hill search” correct=”option2″]<\/p>\n

The correct answer is: B. Backtrack search<\/strong>.<\/p>\n

Backtracking is a recursive algorithm for finding all solutions to a problem. It works by trying all possible combinations of values for the variables in the problem, and backtracking when it finds a solution that is not valid.<\/p>\n

In the context of the question, backtracking search is used to find all possible solutions to a problem where each variable can have only one of a finite number of values. The search starts by assigning a value to the first variable, and then backtracks if that value is not valid. It then assigns a value to the second variable, and backtracks if that value is not valid, and so on. The search continues until all possible values for all variables have been tried, or until a solution is found.<\/p>\n

The other options are incorrect for the following reasons:<\/p>\n