Backtracking MCQs With Answers

Computer MCQs 360July 14, 2023

0 7 1 minute read

Welcome to the Backtracking MCQs with Answers. In this post, we have shared Backtracking Online Test for different competitive exams. Find practice Backtracking Practice Questions with answers in Computer Tests exams here. Each question offers a chance to enhance your knowledge regarding Backtracking.

Backtracking Online MCQs

By presenting 3 options to choose from, Backtracking Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Backtracking Questions and Answers and click over the correct answer.

Test Name: Backtracking MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Backtracking

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1 / 40

What type of problems can be solved using backtracking?

Graph traversal problems

Combinatorial problems

Arithmetic problems

2 / 40

How does backtracking handle constraints in the solution space?

By ignoring the constraints

By sorting all possibilities

By testing each possibility and abandoning those that fail

3 / 40

In solving the N-Queens problem, what is a critical condition to check for each queen placement?

No two queens can attack each other

All queens must be placed in one row

Queens should form a diagonal line

4 / 40

How is backtracking different from dynamic programming?

Backtracking uses a table

Backtracking is iterative

Backtracking doesn't store intermediate results

5 / 40

What is the primary challenge in designing a backtracking algorithm?

Finding the input size

Sorting the output

Handling the exponential growth of possible solutions

6 / 40

Which problem is not typically solved using backtracking?

Sudoku

N-Queens

Binary Search

7 / 40

Which problem is a classic example of backtracking?

Binary Search

N-Queens

Bubble Sort

8 / 40

In backtracking, what does a "dead end" refer to?

A partial solution that cannot be completed

A sorted array

An optimal solution

9 / 40

What is the base case in the context of backtracking?

The condition under which the recursion terminates

The first call of the function

The maximum depth of recursion

10 / 40

Which method is typically used to generate all permutations of a set?

Backtracking

Dynamic Programming

Divide and Conquer

11 / 40

Which problem involves placing knights on a chessboard so that no two knights threaten each other?

N-Queens

Knights Tour Problem

Sudoku

12 / 40

Which algorithm design technique does backtracking fall under?

Iterative algorithms

Recursive algorithms

Divide and Conquer

13 / 40

What is the role of constraints in a backtracking algorithm?

To limit the search space

To increase the search space

To sort the solutions

14 / 40

What does the term "backtracking" signify in the algorithm?

Retracing steps to find alternatives

Skipping some steps

Sorting the elements

15 / 40

What is backtracking primarily used for?

Sorting algorithms

Solving constraint satisfaction problems

Searching algorithms

16 / 40

What is the significance of "recursive calls" in backtracking?

They sort the input array

They reduce the input size

They explore all potential solutions incrementally

17 / 40

In the context of backtracking, what is a "candidate solution"?

A potential solution being explored

The final solution

The initial input

18 / 40

What is a permutation?

A combination of elements

A subset of elements

An arrangement of all elements in a particular order

19 / 40

In solving the 0/1 Knapsack problem using backtracking, what decision is made at each step?

Multiply the item values

Sort the items

Include or exclude an item

20 / 40

Which problem can be solved using backtracking and involves placing numbers in a grid following certain rules?

Quick Sort

Sudoku

Binary Search

21 / 40

What is the time complexity of solving the N-Queens problem using backtracking?

O(n^2)

O(log n)

O(n!)

22 / 40

In the context of the Hamiltonian Path problem, what does backtracking help to find?

A path visiting each vertex exactly once

The shortest path

The longest path

23 / 40

Which characteristic makes backtracking particularly suitable for puzzles?

Systematic exploration of all possibilities

Guaranteed optimal solution

Fast computation

24 / 40

What is the 8-Puzzle problem an example of?

A backtracking problem

A searching problem

A sorting problem

25 / 40

Which data structure is often used in backtracking to store the state?

Queue

Stack

Linked List

26 / 40

Which strategy does backtracking use to build a solution incrementally?

Linear search

Depth-first search

Breadth-first search

27 / 40

Which term describes an approach that avoids exploring paths that are unlikely to lead to a solution?

Exhaustive search

Random search

Pruning

28 / 40

What is a common use case of backtracking in computer science?

Sorting arrays

Calculating factorials

Solving puzzles

29 / 40

In the context of backtracking, what does "pruning" refer to?

Finding the maximum value

Sorting the search space

Eliminating unnecessary searches

30 / 40

What does a solution state represent in the context of backtracking?

An unsorted array

The initial input state

A partial or complete solution to the problem

31 / 40

What is the purpose of the "isSafe" function in the N-Queens problem?

To check if placing a queen is valid

To count the number of queens

To find all possible queens

32 / 40

In backtracking, what happens when a solution fails?

The algorithm backtracks to try another path

The algorithm restarts

The algorithm terminates

33 / 40

Which problem involves finding all possible ways to partition a set into two subsets of equal sum?

Partition Problem

N-Queens

Traveling Salesman Problem

34 / 40

Which problem can be efficiently solved using backtracking?

Merge Sort

Subset Sum

Binary Search

35 / 40

What is a key feature of the backtracking approach?

Systematic search

Heuristic search

Random search

36 / 40

Which search method is backtracking most similar to?

Depth-first search

Breadth-first search

Binary search

37 / 40

Which method can enhance the efficiency of backtracking by reducing the number of possibilities to be explored?

Pruning

Iterative deepening

Exhaustive search

38 / 40

What is the main advantage of using backtracking over brute force?

Accuracy

Efficiency

Simplicity

39 / 40

Which famous problem in computer science involves finding a tour that visits each vertex exactly once in a graph?

Hamiltonian Path Problem

Travelling Salesman Problem

Subset Sum Problem

40 / 40

Which of the following is a critical aspect of backtracking?

Minimizing the input size

Exploring all possibilities

Sorting elements

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Computer MCQs 360July 14, 2023

0 7 1 minute read