Backtracking MCQs With Answers

Computer MCQs 360July 14, 2023

0 8 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

Which algorithm design technique does backtracking fall under?

Divide and Conquer

Iterative algorithms

Recursive algorithms

3 / 40

How is backtracking different from dynamic programming?

Backtracking doesn't store intermediate results

Backtracking is iterative

Backtracking uses a table

4 / 40

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

Finding the maximum value

Eliminating unnecessary searches

Sorting the search space

5 / 40

What type of problems can be solved using backtracking?

Arithmetic problems

Graph traversal problems

Combinatorial problems

6 / 40

Which search method is backtracking most similar to?

Binary search

Depth-first search

Breadth-first search

7 / 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

8 / 40

Which problem can be efficiently solved using backtracking?

Merge Sort

Subset Sum

Binary Search

9 / 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

10 / 40

Which of the following is a critical aspect of backtracking?

Sorting elements

Exploring all possibilities

Minimizing the input size

11 / 40

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

A path visiting each vertex exactly once

The longest path

The shortest path

12 / 40

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

Sudoku

N-Queens

Knights Tour Problem

13 / 40

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

A partial solution that cannot be completed

An optimal solution

A sorted array

14 / 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

15 / 40

Which strategy does backtracking use to build a solution incrementally?

Linear search

Breadth-first search

Depth-first search

16 / 40

Which problem is a classic example of backtracking?

Bubble Sort

N-Queens

Binary Search

17 / 40

What is a permutation?

A combination of elements

An arrangement of all elements in a particular order

A subset of elements

18 / 40

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

Binary Search

Quick Sort

Sudoku

19 / 40

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

Efficiency

Simplicity

Accuracy

20 / 40

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

Sorting the elements

Retracing steps to find alternatives

Skipping some steps

21 / 40

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

They reduce the input size

They explore all potential solutions incrementally

They sort the input array

22 / 40

Which problem is not typically solved using backtracking?

Binary Search

N-Queens

Sudoku

23 / 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

24 / 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

25 / 40

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

Exhaustive search

Random search

Pruning

26 / 40

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

Iterative deepening

Exhaustive search

Pruning

27 / 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

28 / 40

In backtracking, what happens when a solution fails?

The algorithm backtracks to try another path

The algorithm terminates

The algorithm restarts

29 / 40

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

Include or exclude an item

Multiply the item values

Sort the items

30 / 40

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

The initial input

The final solution

A potential solution being explored

31 / 40

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

Queue

Linked List

Stack

32 / 40

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

Divide and Conquer

Backtracking

Dynamic Programming

33 / 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

34 / 40

What is the 8-Puzzle problem an example of?

A searching problem

A backtracking problem

A sorting problem

35 / 40

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

O(n!)

O(log n)

O(n^2)

36 / 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

37 / 40

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

Sorting arrays

Calculating factorials

Solving puzzles

38 / 40

What is a key feature of the backtracking approach?

Heuristic search

Random search

Systematic search

39 / 40

Which characteristic makes backtracking particularly suitable for puzzles?

Systematic exploration of all possibilities

Fast computation

Guaranteed optimal solution

40 / 40

What is backtracking primarily used for?

Searching algorithms

Solving constraint satisfaction problems

Sorting algorithms

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Computer MCQs 360July 14, 2023

0 8 1 minute read