1.
What is backtracking algorithm?
Correct Answer
B. For finding improvement on computation problems
Explanation
The backtracking algorithm is a technique used to solve computational problems by incrementally building a solution and then "backtracking" or undoing certain steps if they are found to be incorrect or not leading to the desired solution. It is particularly useful for finding improvements on computation problems as it allows for exploring different possibilities and optimizing the solution. This algorithm is not limited to practical jobs or specific domains, but can be applied in a wide range of problem-solving scenarios.
2.
Which is a design technique?
Correct Answer
C. Back tracking
Explanation
Backtracking is a design technique used in computer science and engineering. It involves solving problems by incrementally building a solution and backtracking or undoing certain steps when a dead end is reached. This technique is commonly used in algorithms like depth-first search and constraint satisfaction problems. Leo tape and sound track are not design techniques, while backtracking is a well-known technique used to solve a variety of problems.
3.
Which nodes reflect solution's component?
Correct Answer
B. State space tree
Explanation
The correct answer is "State space tree." In problem-solving and search algorithms, a state space tree represents all possible states and transitions between them. It is a graphical representation of the problem's solution space, with each node representing a specific state and the edges representing the possible transitions between states. Therefore, the nodes in the state space tree reflect the components of the solution being searched for.
4.
JWhat's a feature of backtracking?
Correct Answer
B. No optimization problems
Explanation
Backtracking is a technique used to solve problems by incrementally building a solution and undoing the choices that lead to incorrect solutions. It is primarily used for solving problems that require finding a feasible solution rather than an optimal one. Therefore, the feature of backtracking is that it does not involve optimization problems.
5.
Which involves backtracking?
Correct Answer
D. Knight tour problem
Explanation
The Knight tour problem involves backtracking because it requires finding a sequence of moves for a knight on a chessboard such that it visits every square exactly once. Backtracking is used in this problem to explore all possible moves and backtrack when a dead end is reached, allowing the algorithm to find the correct sequence of moves.
6.
What does SISF stand for?
Correct Answer
B. Standard incremental search formulation
Explanation
The acronym SISF stands for Standard Incremental Search Formulation. This suggests that it is a standardized approach or method for conducting incremental searches. The other options provided do not accurately represent the meaning of the acronym.
7.
What does backtracking search do?
Correct Answer
D. Returns solution to backtracking
Explanation
Backtracking search is an algorithmic technique that is used to find solutions to problems by exploring all possible paths and backtracking when a solution is not found. It systematically explores the search space, making choices and undoing them if they lead to dead ends. When a solution is found, the algorithm returns that solution. Therefore, the correct answer states that backtracking search returns the solution to backtracking.
8.
What does MRV stand for?
Correct Answer
C. Minimum remaining values
Explanation
MRV stands for Minimum Remaining Values. This term is commonly used in the context of constraint satisfaction problems, where it refers to a heuristic for selecting the next variable to be assigned a value. The MRV heuristic selects the variable with the fewest remaining possible values, aiming to reduce the branching factor and improve efficiency in the search process. In this case, the correct answer is "Minimum remaining values."
9.
What is a con of backtracking?
Correct Answer
A. A lot of redundant work
Explanation
A con of backtracking is that it involves a lot of redundant work. This means that the algorithm may end up revisiting the same states or making the same calculations multiple times, which can be inefficient and time-consuming. This can lead to longer execution times and increased computational resources being used.
10.
What is backtracking trashing?
Correct Answer
A. It thrashes unnecessary work
Explanation
Backtracking trashing refers to the process of discarding unnecessary work or computations in order to optimize performance. It involves selectively undoing or discarding previously made choices or decisions in a problem-solving algorithm. By eliminating unnecessary work, backtracking trashing helps to improve efficiency and reduce the time and resources required to solve a problem. Therefore, the given answer "It thrashes unnecessary work" accurately describes the concept of backtracking trashing.