ZNALYTICS BUSINESS SOLUTIONS Software QA Engineer Interview Questions and Answers

Q1. Run time polymorphism code
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Q2. Linked list code
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Q3. Deep copy shallow copy differences
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Deep copy creates a new copy of an object with its own unique memory space, while shallow copy creates a new object that references the same memory locations as the original object.
• Deep copy duplicates all nested objects, while shallow copy only duplicates the references to nested objects.

• Deep copy ensures that changes to the copied object do not affect the original object, while shallow copy may lead to unintended sid...read more
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Q1. More deep questions about polymorphism code
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Q2. Code for interchange of strings without strcpy
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Use a loop to swap characters of two strings without using strcpy function.
• Create two arrays of characters to store the strings

• Use a loop to iterate through each character of the strings and swap them

• Ensure to handle cases where strings have different lengths
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Standard quantitative questions accompanied by logical reasoning and related topics.

Q1. Asked about my projects.
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Q2. What are the basic Object-Oriented Programming (OOP) concepts, including polymorphism and inheritance?
Ans. 
OOP concepts include encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Polymorphism: Objects of different classes can be treated as objects of a common superclass.

• Abstraction: Hides complex implementation details and only shows the necessa
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Q3. Can you explain React, how it functions, and the related concepts?
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React is a JavaScript library for building user interfaces.
• React allows developers to create reusable UI components.

• It uses a virtual DOM for efficient rendering.

• React uses a declarative approach to define how the UI should look based on the application state.

• It supports server-side rendering for improved performance.

• React can be used with other libraries like Redux for state management.
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Q4. About my final year project and how would you improve it?
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Q1. Can you introduce yourself and provide some information about your family?
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I am a software engineer with a passion for coding and problem-solving. I come from a close-knit family with supportive parents and siblings.
• Software engineer with coding and problem-solving skills

• Close-knit family with supportive parents and siblings
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Q2. What are your strengths and weaknesses, and how are you addressing your weaknesses?
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My strengths include problem-solving and teamwork, while my weaknesses are time management and public speaking. I am addressing my weaknesses by taking time management courses and practicing public speaking.
• Strengths: problem-solving, teamwork

• Weaknesses: time management, public speaking

• Addressing weaknesses: taking time management courses, practicing public speaking
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The coding questions were at Leetcode difficulty level and were derived from the Striver sheet.

Q1. BFS graph level
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Q2. Minimum flight distance . I was not shortlisted for interview.
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It was codility test with 2 questions

Q1. One codility question
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Q1. Design system like uber eats
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Q1. Design system like youtube
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Difficult questions and multiple choice questions

Q1. The difficulty of the coding round depends on the interviewer.
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Q1. Scenario based questions
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Q1. Query related to find records based on different types of join
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Q2. Tell me about yourself
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I am a dedicated Senior Software Tester with 5+ years of experience in manual and automated testing.
• 5+ years of experience in software testing

• Proficient in manual and automated testing

• Strong attention to detail and problem-solving skills

• Experience with testing tools such as Selenium and Jira

• Ability to work well in a team and communicate effectively
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Q1. Queries on pivot, rank, lag, lead
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Q2. Project architecture explanation in detail
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Project architecture refers to the high-level structure of a software system, including components, relationships, and interactions.
• Project architecture defines how different components of a software system are organized and interact with each other.

• It includes the design decisions related to the system's structure, such as layers, modules, and communication protocols.

• Common architectural patterns include MVC (Model-Vi...read more
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Q1. Plugin pipeline based scenario question which will trigger first?
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Q2. Which jscript method used to prevent form save??
Ans. 
The onbeforeunload method is used to prevent form save.
• Use the onbeforeunload method to display a warning message before leaving the page without saving the form.

• Return a custom message in the method to prompt the user to confirm if they want to leave the page.

• Example: window.onbeforeunload = function() { return 'Are you sure you want to leave this page without saving?'; };
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Q1. Behavioral interview
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Q2. Package negotiations
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