Extramarks Education QA Engineer Interview Questions and Answers

Xpath types and best practices for usage

• Xpath types include absolute, relative, and attribute-based

• Best xpath to use depends on the specific element being targeted and the structure of the HTML

• Using unique attributes or IDs can help create more stable xpaths

• Avoid using xpaths that rely on the position of an element in the DOM

• Consider using xpaths with functions like contains() or starts-with() for more flexibility

Apache POI is a Java library for working with Microsoft Office documents.

• To use Apache POI, you need to add the POI dependency to your project's build file.

• You can then create instances of POI classes to read, write, and manipulate Office documents.

• For example, to read an Excel file, you can create a Workbook object and use its methods to access the data.

• Similarly, to write data to an Excel file, you can create a Workb...read more

TestNG is a testing framework that provides advanced features for test automation.

• TestNG allows for parallel test execution, which saves time and resources.

• It provides flexible test configuration options through XML files.

• TestNG supports data-driven testing and allows for easy test parameterization.

• It also provides better reporting capabilities compared to other testing frameworks.

• TestNG integrates well with other tool

Java OOPs is a programming paradigm that uses objects to design applications.

• OOPs stands for Object-Oriented Programming

• It focuses on creating reusable code and reducing complexity

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

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