TCS Software QA Engineer Interview Questions and Answers

Core Java coding questions

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?
Ans. 
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?
Ans. 
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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Q1. Can you tell me about yourself?
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I am a passionate software engineer with 5 years of experience in developing web applications using various technologies.
• 5 years of experience in software development

• Proficient in developing web applications

• Skilled in using various technologies

• Passionate about software engineering
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Q2. Can you explain one of the projects you completed during the academic year?
Ans. 
Developed a web-based student management system for tracking attendance and grades.
• Used HTML, CSS, and JavaScript for front-end development.

• Implemented backend functionality using PHP and MySQL database.

• Incorporated user authentication and authorization features for secure access.

• Tested the system thoroughly to ensure functionality and user-friendliness.
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Q3. What were some of the fundamental concepts of Artificial Intelligence that the interviewer inquired about during your interview as a Computer Science and Engineering - Artificial Intelligence and Machine L...read more
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Q4. What were your Achievements in the graduation years
Ans. 
Graduated with honors, completed multiple internships, and won coding competitions
• Graduated with honors in Computer Science

• Completed internships at XYZ Company and ABC Corporation

• Won first place in coding competition at university hackathon
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Q1. 1) OOPS in java, and told to explain abstraction, encapsulation, inheritance with practical code 2) Exception handling(globally), Authentication and authorization 3) SOLID principles and factory design pat...read more
Ans. 
Interview questions for Software Engineer position covering OOPS concepts, exception handling, SOLID principles, Java 8 features, and Streams.
• Abstraction in OOPS: Hiding implementation details. Example: Abstract class Shape with method draw().

• Encapsulation in OOPS: Bundling data and methods that operate on the data. Example: Class Employee with private fields and public getters/setters.

• Inheritance in OOPS: Reusing code...read more
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Q2. 1) Advantage of springboot over spring 2) Tell me all the anotations you know in spring 3) What are CRUD operations, write controller layer and use validating annotations like @NotNull, @valid etc. how to ...read more
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The interview questions cover various topics related to Spring framework, REST vs SOAP, JPA repository, Feign client, circuit breaker, and Spring Security.
• Spring Boot provides a simpler and faster way to set up and run Spring applications compared to traditional Spring.

• Common annotations in Spring include @Controller, @Service, @Repository, @Autowired, @Component, @RequestMapping, @GetMapping, @PostMapping, @PutMapping...read more
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Q3. 1) ACID properties 2) DBMS commands 3) inner queries 4) Joins 5) S3 bucket congif and how to handle file and upload and retrieve in s3 6) Ci/Cd basic flow and docker explaination
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A wide range of questions were asked including concepts like logical reasoning, CN, DBMS, SQL, OS, Data structures followed by very basic coding questions.

Q1. Introduce yourself with your academic details
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Q2. Elaborate your projects
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Q3. What is SDLC and elaborate it?
Ans. 
SDLC stands for Software Development Life Cycle, which is a process used by software development teams to design, develop, and test high-quality software.
• SDLC is a systematic process for building software applications.

• It consists of several phases such as planning, analysis, design, implementation, testing, and maintenance.

• Each phase has its own set of activities and deliverables.

• Examples of SDLC models include Waterfa...read more
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Q4. Some scenario and logic based questions along with technical were asked
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Q1. What do you know about LTIMindtree?
Ans. 
LTIMindtree is a global technology consulting and services company specializing in digital transformation and IT services.
• LTIMindtree was formed through the merger of LTI (Larsen & Toubro Infotech) and Mindtree in 2019.

• It offers services in areas such as cloud computing, data analytics, cybersecurity, and artificial intelligence.

• LTIMindtree serves clients in various industries including banking, healthcare, retail, and...read more
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Q2. Why should we take you?
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Q3. Where do you see yourself in next 5-10 years?
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Q1. Can you tell me about yourself?
Ans. 
I am a passionate software engineer with a strong background in computer science and experience in developing innovative solutions.
• Completed a Bachelor's degree in Computer Science from XYZ University

• Proficient in programming languages such as Java, Python, and C++

• Worked on projects involving web development, database management, and machine learning

• Strong problem-solving skills and ability to work in a team environmen
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Q2. What was your role and contributions in your projects?
Ans. 
I was responsible for designing and implementing new features, fixing bugs, and optimizing performance in various projects.
• Designed and implemented new features based on client requirements

• Fixed bugs reported by QA team or end users

• Optimized performance by refactoring code or improving algorithms

• Collaborated with team members to ensure project deadlines were met
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Q3. Are you willing to relocate?
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Yes, I am open to relocating for the right opportunity.
• I am open to relocating for the right job opportunity

• I am flexible and willing to move for the right position

• I have relocated for previous jobs and am comfortable with the process
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