DynaTech Systems Quality Assurance Analyst Interview Questions and Answers

Q1. About my experience and my skills
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Q1. Questions related to Software Testing
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Q2. Type of testing and methods
Ans. 
Various types of testing methods include manual testing, automated testing, performance testing, and regression testing.
• Manual testing involves testers manually executing test cases without the use of automation tools.

• Automated testing uses automation tools to execute test cases and compare actual outcomes with expected outcomes.

• Performance testing evaluates the speed, responsiveness, and stability of a system under va...read more
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Q3. Explain software test life cycle
Ans. 
Software test life cycle is a set of activities performed to ensure the quality of a software product.
• It includes test planning, test design, test execution, and test closure.

• Test planning involves defining the scope, objectives, and resources for testing.

• Test design involves creating test cases and test scenarios based on requirements.

• Test execution involves running the test cases and reporting defects.

• Test closure in...read more
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Q1. Manager round about the software testing
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Q1. Salary discussion and company policy breif
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Basic Manual testing Questions

Round duration - 30 minutes
Round difficulty - Medium

This was a MCQ round. 30 ques in 30 mins consisting of difficult quantitative aptitude questions were to be solved.

Round duration - 60 minutes
Round difficulty - Medium

In this test round, 2 coding questions were given. Either write the code or pseudo code

Q1. 
N Queens Problem
Given an integer N, find all possible placements of N queens on an N x N chessboard such that no two queens threaten each other.
Explanation:
A queen can attack another queen if they ar...read more
Ans. 
The N Queens Problem involves finding all possible placements of N queens on an N x N chessboard without threatening each other.
• Use backtracking algorithm to explore all possible configurations.

• Keep track of rows, columns, and diagonals to ensure queens do not threaten each other.

• Generate all valid configurations and print them out.
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Q2. 
Sort 0 1 2 Problem Statement
Given an integer array arr of size 'N' containing only 0s, 1s, and 2s, write an algorithm to sort the array.
Input:
The first line contains an integer 'T' representing the n...read more
Ans. 
Sort an array of 0s, 1s, and 2s in linear time complexity.
• Use three pointers to keep track of 0s, 1s, and 2s while traversing the array.

• Swap elements based on the values encountered to sort the array in-place.

• Time complexity should be O(N) and space complexity should be O(1).
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Round duration - 60 minutes
Round difficulty - Easy

This was a technical round with questions on DSA.

Q1. 
Reverse Words in a String: Problem Statement
You are given a string of length N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o...read more
Ans. 
Reverse words in a string while handling leading, trailing, and multiple spaces.
• Split the input string by spaces to get individual words

• Reverse the order of the words

• Join the reversed words with a single space in between
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Q2. 
Circular Linked List Detection
You are provided with the head of a linked list containing integers. Your task is to determine if the linked list is circular.
Note:
• A linked list is considered circula...read more
Ans. 
Detect if a given linked list is circular by checking if it forms a closed loop.
• Traverse the linked list using two pointers, one moving at double the speed of the other.

• If the two pointers meet at any point, the linked list is circular.

• If the faster pointer reaches the end of the list (NULL), the linked list is not circular.
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Round duration - 30 minutes
Round difficulty - Easy

HR round with typical behavioral problems.