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 role of constraints in a backtracking algorithm?

To increase the search space

To sort the solutions

To limit the search space

2 / 40

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

The shortest path

The longest path

A path visiting each vertex exactly once

3 / 40

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

Exhaustive search

Iterative deepening

Pruning

4 / 40

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

Sorting the elements

Retracing steps to find alternatives

Skipping some steps

5 / 40

How is backtracking different from dynamic programming?

Backtracking uses a table

Backtracking is iterative

Backtracking doesn't store intermediate results

6 / 40

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

O(n^2)

O(n!)

O(log n)

7 / 40

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

A partial or complete solution to the problem

An unsorted array

The initial input state

8 / 40

What is a key feature of the backtracking approach?

Systematic search

Random search

Heuristic search

9 / 40

What is the base case in the context of backtracking?

The first call of the function

The condition under which the recursion terminates

The maximum depth of recursion

10 / 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

Queens should form a diagonal line

No two queens can attack each other

11 / 40

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

Exhaustive search

Pruning

Random search

12 / 40

Which algorithm design technique does backtracking fall under?

Divide and Conquer

Iterative algorithms

Recursive algorithms

13 / 40

What type of problems can be solved using backtracking?

Graph traversal problems

Combinatorial problems

Arithmetic problems

14 / 40

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

Efficiency

Accuracy

Simplicity

15 / 40

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

Calculating factorials

Sorting arrays

Solving puzzles

16 / 40

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

To count the number of queens

To find all possible queens

To check if placing a queen is valid

17 / 40

Which problem is not typically solved using backtracking?

Sudoku

N-Queens

Binary Search

18 / 40

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

Knights Tour Problem

N-Queens

Sudoku

19 / 40

Which of the following is a critical aspect of backtracking?

Sorting elements

Minimizing the input size

Exploring all possibilities

20 / 40

Which problem can be efficiently solved using backtracking?

Subset Sum

Merge Sort

Binary Search

21 / 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

22 / 40

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

Divide and Conquer

Backtracking

Dynamic Programming

23 / 40

In backtracking, what happens when a solution fails?

The algorithm backtracks to try another path

The algorithm terminates

The algorithm restarts

24 / 40

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

They explore all potential solutions incrementally

They reduce the input size

They sort the input array

25 / 40

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

Traveling Salesman Problem

Partition Problem

N-Queens

26 / 40

What is backtracking primarily used for?

Solving constraint satisfaction problems

Searching algorithms

Sorting algorithms

27 / 40

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

Sorting the search space

Eliminating unnecessary searches

Finding the maximum value

28 / 40

What is the primary challenge in designing a backtracking algorithm?

Sorting the output

Finding the input size

Handling the exponential growth of possible solutions

29 / 40

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

An optimal solution

A partial solution that cannot be completed

A sorted array

30 / 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

31 / 40

Which strategy does backtracking use to build a solution incrementally?

Breadth-first search

Linear search

Depth-first search

32 / 40

What is a permutation?

A subset of elements

An arrangement of all elements in a particular order

A combination of elements

33 / 40

What is the 8-Puzzle problem an example of?

A backtracking problem

A sorting problem

A searching problem

34 / 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

35 / 40

Which search method is backtracking most similar to?

Breadth-first search

Binary search

Depth-first search

36 / 40

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

Quick Sort

Binary Search

Sudoku

37 / 40

Which problem is a classic example of backtracking?

Binary Search

N-Queens

Bubble Sort

38 / 40

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

Queue

Linked List

Stack

39 / 40

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

The initial input

A potential solution being explored

The final solution

40 / 40

Which characteristic makes backtracking particularly suitable for puzzles?

Systematic exploration of all possibilities

Fast computation

Guaranteed optimal solution

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Computer MCQs 360July 14, 2023

0 7 1 minute read