10+ QA Associate Interview Questions and Answers

Sanity and Smoke Testing are types of software testing used to ensure the stability of the application.

• Smoke Testing is a quick and shallow test to check if the application is stable enough for further testing.

• Sanity Testing is a more thorough test to check if the application is ready for release.

• Smoke Testing is usually done after a new build is released, while Sanity Testing is done after major changes are made to the application.

• Example of Smoke Testing: Checking if the lo...read more

Integration testing checks if different modules work together, while system testing checks if the entire system meets requirements.

• Integration testing focuses on testing the interfaces between modules or components of a system.

• System testing focuses on testing the entire system as a whole, including all integrated components.

• Integration testing is performed before system testing.

• System testing is performed after integration testing.

• Integration testing is usually done by devel...read more

Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in the superclass.

• Method overloading is achieved within the same class by having multiple methods with the same name but different parameters.

• Method overriding occurs in a subclass when a method has the same name and parameters as a method in the superclass, effectively rep...read more

Calculating the percentage of components in mixture samples is a common task in biotech QA.

• Determine the total amount of the mixture sample

• Calculate the individual amounts of each component in the mixture

• Divide the individual component amount by the total amount and multiply by 100 to get the percentage

• Repeat the calculation for each component in the mixture

Different testing techniques include black box testing, white box testing, unit testing, integration testing, system testing, regression testing, and acceptance testing.

• Black box testing focuses on the functionality of the software without looking at the internal code.

• White box testing involves testing the internal code structure, paths, and branches.

• Unit testing tests individual components or units of the software.

• Integration testing tests the interaction between different c...read more

Agile is a project management methodology that emphasizes on iterative development, collaboration, and customer satisfaction.

• Agile is based on the Agile Manifesto, which values individuals and interactions, working software, customer collaboration, and responding to change.

• Agile involves breaking down a project into smaller, manageable chunks called sprints.

• Agile encourages continuous feedback and improvement throughout the development process.

• Examples of Agile methodologies ...read more

Testing is done to ensure the quality, functionality, and reliability of software products.

• To identify defects and bugs in the software

• To ensure the software meets the requirements and specifications

• To improve the user experience and satisfaction

• To prevent potential issues and failures in production

• To validate the software against different scenarios and conditions

Hard assert stops the test execution when a failure occurs, while soft assert continues the test execution after logging the failure.

• Hard assert is used when a failure should stop the test immediately.

• Soft assert is used when a failure should be logged but the test should continue.

• Example: Hard assert - assert.assertEquals(actual, expected); Soft assert - softAssert.assertEquals(actual, expected); softAssert.assertAll();

Test case template for QA testing

• Test case ID

• Test case description

• Test steps

• Expected result

• Actual result

• Pass/Fail status

Different types of testing include functional testing, non-functional testing, manual testing, automated testing, regression testing, and performance testing.

• Functional testing: Testing the functionality of the software to ensure it meets requirements.

• Non-functional testing: Testing aspects like performance, usability, and security.

• Manual testing: Testing performed manually by a tester.

• Automated testing: Testing using automated tools and scripts.

• Regression testing: Testing to...read more

Types of locators in Selenium include ID, Name, Class Name, Tag Name, Link Text, Partial Link Text, XPath, and CSS Selector.

• ID - locate elements by their ID attribute

• Name - locate elements by their Name attribute

• Class Name - locate elements by their Class attribute

• Tag Name - locate elements by their HTML tag name

• Link Text - locate elements by the exact text of a link

• Partial Link Text - locate elements by a partial match of link text

• XPath - locate elements using XML path expre...read more

Find the 2nd largest string in an array of strings.

• Iterate through the array and keep track of the largest and second largest strings.

• Compare each string with the current largest and second largest strings to update them accordingly.