10+ Capgemini Interview Questions and Answers

Regression is retesting of previously tested functionality to ensure that changes made to the software have not affected it.

• Regression testing is done to ensure that new changes or fixes have not introduced new bugs or issues.

• It is not necessary to do regression testing on every release, but it should be done on critical functionality or areas that have been changed.

• Regression testing can be done manually or through automation tools like Selenium.

• Examples of regression testin...read more

I will plan testing by analyzing the requirements, identifying test scenarios, creating test cases, and executing them.

• Analyze the requirements and identify test scenarios

• Create test cases based on the identified scenarios

• Execute the test cases and report defects

• Perform regression testing to ensure the fixes do not break existing functionality

• Collaborate with the development team to resolve issues

• Ensure the testing is completed within the given timeline

Locators in Selenium are used to identify web elements on a web page.

• Locators are used to find web elements based on their attributes such as ID, class, name, etc.

• Selenium supports various types of locators such as ID, class name, name, tag name, link text, partial link text, CSS selector, and XPath.

• For example, to find an element with ID 'username', we can use the following code: driver.findElement(By.id('username'));

Effort estimation is the process of predicting the amount of time, resources, and cost required to complete a project or task.

• Effort estimation helps in planning and scheduling the project

• It involves breaking down the project into smaller tasks and estimating the effort required for each task

• Factors like complexity, team size, experience, and tools used are considered while estimating effort

• Effort estimation can be done using various techniques like expert judgment, historica...read more

OOPs is a programming paradigm based on the concept of objects, which can contain data and code.

• OOPs stands for Object-Oriented Programming.

• It is based on the concept of classes and objects.

• Encapsulation, Inheritance, Polymorphism, and Abstraction are the four main pillars of OOPs.

• Java is an OOPs language.

• Example: A car is an object that has properties like color, model, and features, and methods like start, stop, and accelerate.

Smoke testing is a preliminary test to check if the software is stable enough for further testing. Sanity testing is a subset of regression testing to check if the bugs have been fixed and new features have been added without breaking the existing functionality.

• Smoke testing is done to check if the critical functionalities of the software are working fine.

• Sanity testing is done to check if the bugs have been fixed and new features have been added without breaking the existing...read more

Agile methodology is an iterative approach to software development that emphasizes flexibility and customer satisfaction.

• Agile focuses on delivering working software in short iterations

• It values collaboration between team members and with stakeholders

• It prioritizes responding to change over following a plan

• It emphasizes continuous improvement through feedback and reflection

• Examples of Agile frameworks include Scrum, Kanban, and XP

Defect Life Cycle is the process of identifying, reporting, prioritizing, fixing, and verifying defects in software.

• Defect is identified by testers during testing

• Defect is reported to development team

• Development team prioritizes and fixes the defect

• Fixed defect is verified by testers

• If defect is not fixed, it goes back to development team

• If defect is fixed, it is closed

API stands for Application Programming Interface. Authentication mechanism is a process to verify the identity of a user or system.

• API is a set of rules and protocols that allows different software applications to communicate with each other.

• Authentication mechanism ensures that only authorized users or systems can access the API.

• Common authentication mechanisms include API keys, OAuth, and JSON Web Tokens (JWT).

• API keys are unique identifiers that are used to authenticate an...read more

Performance in React JS can be improved by optimizing rendering, reducing unnecessary re-renders, using virtualization, code splitting, and lazy loading.

• Optimize rendering by using shouldComponentUpdate or React.memo

• Reduce unnecessary re-renders by using PureComponent or memoization techniques

• Use virtualization for long lists or tables to improve rendering performance

• Implement code splitting to load only necessary code for each route or component

• Utilize lazy loading to defer ...read more