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 is the primary challenge in designing a backtracking algorithm?

Handling the exponential growth of possible solutions

Finding the input size

Sorting the output

2 / 40

What is a key feature of the backtracking approach?

Systematic search

Heuristic search

Random search

3 / 40

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

Queue

Linked List

Stack

4 / 40

Which problem can be efficiently solved using backtracking?

Merge Sort

Binary Search

Subset Sum

5 / 40

Which problem is a classic example of backtracking?

Binary Search

Bubble Sort

N-Queens

6 / 40

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

Travelling Salesman Problem

Subset Sum Problem

Hamiltonian Path Problem

7 / 40

What is backtracking primarily used for?

Solving constraint satisfaction problems

Sorting algorithms

Searching algorithms

8 / 40

Which algorithm design technique does backtracking fall under?

Recursive algorithms

Divide and Conquer

Iterative algorithms

9 / 40

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

Sorting the elements

Skipping some steps

Retracing steps to find alternatives

10 / 40

Which strategy does backtracking use to build a solution incrementally?

Linear search

Depth-first search

Breadth-first search

11 / 40

What is the 8-Puzzle problem an example of?

A sorting problem

A backtracking problem

A searching problem

12 / 40

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

Exhaustive search

Iterative deepening

Pruning

13 / 40

Which characteristic makes backtracking particularly suitable for puzzles?

Guaranteed optimal solution

Systematic exploration of all possibilities

Fast computation

14 / 40

What is the role of constraints in a backtracking algorithm?

To sort the solutions

To increase the search space

To limit the search space

15 / 40

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

O(log n)

O(n!)

O(n^2)

16 / 40

Which problem is not typically solved using backtracking?

N-Queens

Binary Search

Sudoku

17 / 40

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

Sudoku

Binary Search

Quick Sort

18 / 40

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

Efficiency

Simplicity

Accuracy

19 / 40

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

Pruning

Random search

Exhaustive search

20 / 40

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

Eliminating unnecessary searches

Sorting the search space

Finding the maximum value

21 / 40

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

An unsorted array

A partial or complete solution to the problem

The initial input state

22 / 40

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

A sorted array

An optimal solution

A partial solution that cannot be completed

23 / 40

What type of problems can be solved using backtracking?

Graph traversal problems

Arithmetic problems

Combinatorial problems

24 / 40

In backtracking, what happens when a solution fails?

The algorithm backtracks to try another path

The algorithm terminates

The algorithm restarts

25 / 40

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

To check if placing a queen is valid

To find all possible queens

To count the number of queens

26 / 40

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

Dynamic Programming

Backtracking

Divide and Conquer

27 / 40

What is a permutation?

A combination of elements

An arrangement of all elements in a particular order

A subset of elements

28 / 40

Which search method is backtracking most similar to?

Breadth-first search

Depth-first search

Binary search

29 / 40

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

Sudoku

Knights Tour Problem

N-Queens

30 / 40

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

The longest path

The shortest path

A path visiting each vertex exactly once

31 / 40

How is backtracking different from dynamic programming?

Backtracking is iterative

Backtracking doesn't store intermediate results

Backtracking uses a table

32 / 40

How does backtracking handle constraints in the solution space?

By testing each possibility and abandoning those that fail

By sorting all possibilities

By ignoring the constraints

33 / 40

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

The initial input

A potential solution being explored

The final solution

34 / 40

What is the base case in the context of backtracking?

The condition under which the recursion terminates

The maximum depth of recursion

The first call of the function

35 / 40

Which of the following is a critical aspect of backtracking?

Exploring all possibilities

Minimizing the input size

Sorting elements

36 / 40

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

N-Queens

Partition Problem

Traveling Salesman Problem

37 / 40

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

All queens must be placed in one row

No two queens can attack each other

Queens should form a diagonal line

38 / 40

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

They reduce the input size

They sort the input array

They explore all potential solutions incrementally

39 / 40

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

Solving puzzles

Sorting arrays

Calculating factorials

40 / 40

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

Sort the items

Multiply the item values

Include or exclude an item

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Computer MCQs 360July 14, 2023

0 7 1 minute read