Kumaran Systems QA Engineer Interview Questions and Answers

Q1. Test life cycle
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Q1. Testing artifact
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Q1. Salary negotiations
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Q1. How are you different from other testers ?
Ans. 
I have a strong background in automation testing and a keen eye for detail.
• Extensive experience in automation testing using tools like Selenium and Appium

• Ability to write complex test scripts and perform regression testing efficiently

• Strong analytical skills to identify and troubleshoot issues effectively

• Proven track record of finding critical bugs missed by other testers
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It was mixed like aptitude and from technical.

Q1. It was F2F round. Where technical questions were asked.
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Q1. Managerial round. It includes technical and managerial both
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Q1. HR round. It includes all the HR level questions
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Q1. What is components
Ans. 
Components are reusable and independent parts of a software system that perform specific functions.
• Components are modular and can be easily integrated into different parts of a software system.

• They help in organizing code and promoting reusability.

• Examples include buttons, input fields, and dropdown menus in a user interface.
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Q2. What is react.js
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React.js is a JavaScript library for building user interfaces.
• React.js is developed and maintained by Facebook.

• It allows developers to create reusable UI components.

• React.js uses a virtual DOM for better performance.

• It follows a component-based architecture.

• React.js can be used for building single-page applications.
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Q3. What is state and props
Ans. 
State and props are two important concepts in React for managing data and passing data between components.
• State is used to store and manage data within a component. It is mutable and can be updated using setState() method.

• Props (short for properties) are used to pass data from parent components to child components. Props are immutable.

• State is internal to a component, while props are external and passed down from paren...read more
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Q4. What is hooks in reactjs
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Hooks in ReactJS are functions that let you use state and other React features without writing a class.
• Hooks were introduced in React 16.8 to allow functional components to have state and lifecycle methods.

• Some commonly used hooks are useState, useEffect, useContext, and useRef.

• Hooks can be used to manage component state, perform side effects, and access context in functional components.

• Example: useState hook allows yo...read more
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Q1. What is components in react
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Components in React are reusable, independent pieces of code that manage their own state and can be composed together to build complex UIs.
• Components are the building blocks of a React application

• They can be either functional components or class components

• Components can have their own state and lifecycle methods

• Components can be reused and composed together to create complex UIs

• Example:

  , ,
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Written test on Basics of c and c++ is asked.
Also be thorough with mathematical topics like vectors,calculus.

Q1. C++ basic questions Oops concepts
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Q2. Math questions on vectors and calculus Predict the output for a given program
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Q1. Find repeated nos in arrays
Ans. 
Find repeated numbers in arrays of strings
• Iterate through each string in the array

• Convert each string to an array of numbers

• Use a hash map to track the frequency of each number

• Identify and return the repeated numbers
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Q1. Current company work, reason for change, etc.
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Basic logical aptitude questions

Q1. Aggregate Functions in MySQL
Ans. 
Aggregate functions in MySQL are used to perform calculations on a set of values and return a single value.
• Aggregate functions include COUNT, SUM, AVG, MIN, and MAX.

• COUNT returns the number of rows in a table.

• SUM returns the sum of a set of values.

• AVG returns the average of a set of values.

• MIN returns the minimum value in a set of values.

• MAX returns the maximum value in a set of values.

• Aggregate functions can be used w...read more
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Q2. Decorators in Python
Ans. 
Decorators are functions that modify the behavior of other functions without changing their source code.
• Decorators are denoted by '@' symbol in Python.

• They can be used to add functionality to a function, such as logging or timing.

• They can also be used to modify the behavior of a function, such as caching or memoization.

• Decorators can be applied to classes, methods, and functions.

• Examples of built-in decorators in Pytho
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Q3. How can you access the values in dictionary?
Ans. 
Values in a dictionary can be accessed using keys.
• Use the key to access the corresponding value in the dictionary.

• Values can be accessed using square brackets or the get() method.

• If the key is not present, using square brackets will raise a KeyError, while get() will return None or a default value.

• Example: my_dict = {'key1': 'value1', 'key2': 'value2'}

• my_dict['key1'] will return 'value1'

• my_dict.get('key2') will return ...read more
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Q1. Have you ever worked under tight deadlines?
Ans. 
Yes
• Yes, I have worked under tight deadlines in my previous roles.

• I am accustomed to working in fast-paced environments and delivering high-quality work within tight timeframes.

• For example, in my previous job, we had a project with a strict deadline of two weeks. Despite the limited time, I successfully completed the project on time by prioritizing tasks, collaborating with team members, and efficiently managing my time
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Q2. What are the key focus areas you focused on to get success in your past roles?
Ans. 
In my past roles, I focused on key areas such as problem-solving, collaboration, continuous learning, and delivering high-quality software.
• Problem-solving: I actively sought out and resolved complex technical issues, finding efficient and effective solutions.

• Collaboration: I worked closely with cross-functional teams, fostering open communication and teamwork to achieve project goals.

• Continuous learning: I consistently...read more
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