NTT Data QA Test Engineer Interview Questions and Answers

Boundary value analysis is a software testing technique used to test boundaries between valid and invalid input values.

• Helps identify errors at boundaries of input ranges

• Tests values at the lower and upper limits, as well as just inside and just outside those limits

• Reduces the number of test cases needed for thorough testing

• Example: Testing a program that accepts numbers from 1 to 100 would include test cases for 0, 1,

Regression testing should be performed whenever there are changes made to the software.

• Perform regression testing after any code changes, bug fixes, or new feature implementations.

• Regression testing should also be done after configuration changes or updates to the software environment.

• Automate regression testing to ensure quick and efficient testing of the entire application.

• Regression testing is essential before relea...read more

Absolute Xpath starts from the root element, while relative Xpath starts from any node in the DOM structure.

• Absolute Xpath starts with a single forward slash (/) and starts selection from the root node.

• Relative Xpath starts with a double forward slash (//) and starts selection from the current node or any node in the DOM structure.

• Absolute Xpath is more brittle and prone to breaking if the structure of the page changes...read more

The return would be the number of tabs open in the browser.

• The return value would be an integer representing the count of open tabs.

• For example, if there are 5 tabs open, the return value would be 5.

Types of waits in Selenium include Implicit Wait, Explicit Wait, and Fluent Wait.

• Implicit Wait: Waits for a certain amount of time before throwing a NoSuchElementException.

• Explicit Wait: Waits for a certain condition to occur before proceeding further in the code.

• Fluent Wait: Waits for a condition to be true with a defined polling frequency.

• Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);

Exceptions in Selenium are errors that occur during test execution, disrupting the flow of the test script.

• Exceptions are thrown when there is an unexpected behavior in the application under test or in the test script itself.

• Common exceptions in Selenium include NoSuchElementException, ElementNotVisibleException, TimeoutException, and StaleElementReferenceException.

• Handling exceptions in Selenium can be done using try-...read more

Feature files contain high-level description of the functionality to be tested, while step definitions are the implementation of the steps in the feature file using code.

• Feature files are written in Gherkin syntax and describe the behavior of the application in plain text.

• Step definitions are written in programming languages like Java, Ruby, etc., and map the steps in the feature file to automation code.

• Feature files a...read more

Data can be input in Cucumber using feature files and step definitions.

• Data can be input in feature files using scenarios and scenario outlines

• Step definitions can be used to define the actions to be taken with the input data

• Data tables can be used in feature files to input structured data

• Examples keyword can be used in scenario outlines to provide multiple sets of input data

Test case is a set of conditions or variables under which a tester will determine whether a system under test satisfies requirements. Test plan is a document outlining the scope, approach, resources, and schedule of testing activities. Test scenarios are detailed descriptions of possible interactions with the system.

• Test case: specific conditions to be tested, expected results, steps to execute

• Test plan: overall strate...read more

Hooks in Java are methods that allow subclasses to override or extend the behavior of a superclass.

• Hooks are commonly used in frameworks like JUnit and TestNG for test automation.

• They are often used for setup and teardown operations before and after test methods.

• Examples include @Before, @After, @BeforeClass, and @AfterClass annotations in JUnit.