Billion Engineers QA QC Engineer Interview Questions and Answers

Q1. Write a code to reverse string "Selenium"
Ans. 
Code to reverse a string
• Use the built-in reverse() function to reverse the string

• Convert the string to an array of characters, reverse the array, and then join the characters back into a string
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Q2. Synchronization in selenium
Ans. 
Synchronization in Selenium is the process of ensuring that the test scripts wait for the web elements to load before performing actions on them.
• Synchronization is important to avoid timing issues and ensure accurate test results.

• There are two types of synchronization in Selenium: implicit and explicit.

• Implicit synchronization uses the default timeout value to wait for elements to load.

• Explicit synchronization uses exp...read more
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Q1. What is meant by Polymorphism
Ans. 
Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance in object-oriented programming languages like Java allows for polymorphism.

• Example: Function overloading
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Q2. Write a program to find no of repeated characters in a string
Ans. 
Program to find number of repeated characters in a string
• Iterate through each character in the string

• Use a hashmap to store the count of each character

• Increment the count if character is already present in the hashmap

• Return the count of characters with count greater than 1
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Q3. About config file
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Q4. About scenario outline
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Q5. Tell me about yourself
Ans. 
I am a dedicated Quality Engineer with a strong background in ensuring product quality and compliance with industry standards.
• Experienced in conducting quality control tests and inspections

• Skilled in analyzing data and identifying areas for improvement

• Proficient in implementing quality management systems

• Strong attention to detail and problem-solving skills

• Excellent communication and teamwork abilities
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Q1. Explain about agile methodology
Ans. 
Agile methodology is a project management approach that emphasizes flexibility, collaboration, and incremental progress.
• Agile methodology involves breaking down projects into small, manageable tasks called sprints.

• It prioritizes customer feedback and collaboration over rigid planning.

• Adaptability and responding to change are key principles of agile methodology.

• Common frameworks for agile include Scrum, Kanban, and Extr
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Q2. Explain about bug life cycle
Ans. 
Bug life cycle refers to the stages a bug goes through from identification to resolution in software testing.
• Bug is identified by tester

• Bug is reported in bug tracking system

• Bug is assigned to developer for fixing

• Developer fixes the bug

• Bug is retested by tester

• Bug is closed if fixed or reopened if issue persists
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DSA , Quiz and Oops concepts were asked
And also go through your resume and projects thoroughly

Q1. Why do you want this role
Ans. 
I am passionate about ensuring quality standards are met and enjoy problem-solving in a technical environment.
• Passionate about ensuring quality standards are met

• Enjoy problem-solving in a technical environment

• Excited about contributing to continuous improvement processes
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Q2. How would you use data science in your field
Ans. 
Data science can be used in quality engineering to analyze large datasets, identify trends, predict failures, and optimize processes.
• Utilize data analytics to identify patterns and trends in quality control data

• Implement predictive modeling to anticipate potential failures in manufacturing processes

• Optimize quality control processes using machine learning algorithms

• Utilize statistical analysis to improve product qualit...read more
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Q3. Have you done any projects in team
Ans. 
Yes, I have worked on multiple projects in a team setting.
• Worked on a project to improve manufacturing processes with a team of engineers

• Collaborated with cross-functional teams to implement quality control measures

• Participated in a project to develop new testing procedures for product validation
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Q4. How would you handle feedback
Ans. 
I would handle feedback by actively listening, remaining open-minded, and taking constructive criticism positively.
• Actively listen to the feedback without interrupting

• Remain open-minded and consider the feedback objectively

• Ask clarifying questions to fully understand the feedback

• Take constructive criticism positively and use it as an opportunity for growth

• Provide feedback on how the feedback was implemented or addresse
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Q5. How you have handled issue in your teams while working on projects
Ans. 
I have handled team issues by promoting open communication, addressing concerns promptly, and fostering a collaborative environment.
• Encouraging open communication among team members to address issues early on

• Addressing concerns promptly and effectively to prevent escalation

• Fostering a collaborative environment where team members feel comfortable sharing their thoughts and ideas

• Implementing conflict resolution strategie...read more
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Q1. Asked question from my resumè about the projects i have worked on.
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Q2. Type of motors? Type of power? Losses in transformer?
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Q3. What is a rectifier?
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Q4. What is a chopper?
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Q5. Formula of active power and reactive power.
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Q1. Test cycle and types
Ans. 
Test cycle refers to the process of planning, executing, and evaluating tests. Types include unit, integration, system, and acceptance testing.
• Test cycle involves planning, executing, and evaluating tests

• Types of tests include unit, integration, system, and acceptance testing

• Unit testing focuses on individual components or modules

• Integration testing verifies interactions between components

• System testing evaluates the e...read more
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Coding with basic programming skills

Python web automation apptitude