100+ Selenium Interview Questions and Answers for Freshers and experienced

1) What do you mean by Automation testing?https://30bashscript.blogspot.com/

Test automation or automation testing is the process of manual process automation to test the system or application under test. Automation testing includes a separate testing tool that helps in developing test scripts to be repeatedly executed and does not need any manual intervention.

Q2) What are the advantages of Automation Testing?

The advantages of automation testing include

Assist in testing a higher test matrix
Increased unattended execution
Saves money and time
Support implementation of repeated test cases.
Allows parallel execution
Enhance accuracy to decrease human errors.

Q3) What do you mean by Selenium, and their components?

Selenium is the collection of automated web testing tools composed of

Selenium Integrated Development Environment: It’s one of the important firefox plugin and selenium tools to play and record back.
RC and WebDriver: It offers APIs for .NET, Java, PHP, and other languages with different browsers like RC works and Webdriver.

Q4) What do you mean by Selenium 2.0 & 3.0?

WebDriver and Selenium RC are the web testing tools consolidated in the Selenium 2.0, whereas Selenium 3.0 is the updated version of selenium.

Q5) How to find a component with the help of Selenium?

Every control or object in a web page is termed as elements in Selenium. You can find the components in web page easily through the following aspects.

ID
Tag
CSS
PartialLink text
Name
Attribute
Link text

Q6) What are the advantages of Selenium Automation?

There are many advantages of using the Selenium for automation namely

Cross-browser: It works on all major browsers like FF, Safari, Chrome, IE, and more. It allows running test script in every browser.
Cross-platform: it offers test compatibility across different platforms like Mac OSX, Linux, and Windows. Running the same test scripts is easier on every platform.
CLI support: creating a test suite with different test is easier. It can be launched by using a single command.
Free help: As it’s a large community, getting support is easier.
Ongoing project: Bug fixes and active development on all updated projects.
Open-source: There are no requirements for bearing with licensing cost as they are open-source software.
Multi-language: It’s easy for choosing any programming language from C#, Python, Ruby, and Java to use with Selenium.
Concurrency: It’s easy to implement different tests parallelly with Selenium grid.
CI support: Jenkin, one of the best CI tools contains a selenium plugin to initiate tests for execution.
Tester-friendly: Automation using selenium can be even done by a non-programmer.

Q7) What are programming languages used in the Selenium?

Java
JavaScript
PHP
Python
C-Sharp
Ruby
Perl

Q8) What are the platforms and OS supported by Selenium?

Windows Mobile
Mac OS X
Android
Windows Desktop
Linux
IOS

Q9) What are case types you can automate using Selenium?

Regression test cases
Sanity test cases
End to end test cases
Integration tests
Functional cases
Acceptance tests
Smoke tests
Cross-browser tests
Responsiveness cases

Q10) What are the various exceptions used in Selenium Webdriver?

Selenium Exception can be compared to other programming language exceptions. Some of the standard exceptions in Selenium are

NoSuchElementException: The exception is used when the element with the provided attributes is not found on the web page.
StaleElementException: The exception is used when the element is no longer attached or deleted from the DOM.
TimeoutException: The exception is used when a command that uses an operation is not completed at the right time.
ElementNotVisibleException: The exception is used when the presented element in the Document Object Model is not visible on the web page.

Q11) What do you mean by POM?

POM stands for Page Object Model. It’s a design pattern used for creating a repository for the object for web UI elements. Every application’s web page is needed to have its own page class as they are responsible for identifying the WebElements and then perform the operation of those elements on the web.

Q12) What are the benefits of POM?

The benefits of using the Page object Model are

Multiple tests can be used on the same repository of the object as the Object repository is idle of test cases.
Code reusability
Enables for separate flows and operations in the UI from verification.
Enhance code readability.

Q13) What are the limitations and challenges faced by the Selenium WebDriver?

There are no chance to test the window applications
Limited reporting is only possible.
Handling dynamic elements is not easier.
Handling pop windows is not easier
There is no chance to test mobile applications.
Handling page load is not easier
Handling captcha is not easier.

Q14) What are the tests that are automated?

Smoke testing
Sanity testing
Regression testing

Q15) What do you mean by Frameworks and their common types?

A framework is defined as the best practices or rules that are followed in the best way to achieve the best results. There are many automation frameworks namely

Keyword-driven testing framework
Behavioral driven framework
Data-driven testing framework
Hybrid testing framework.

Q16) What are the element locators in Selenium 1.0?

Html name
CSS locators
Html id
Xpath locator

Q17) What do you mean by Accessor in Selenium?

Accessors are used to store the target value in a variable. For example, StoreTitle helps to store the window title in a variable, and storeText is used for storing the text of the targeted element in the variable.
Accessors are used to store the result in a variable and also evaluate the results. For example, store TextPresent helps in evaluating the text, whether they in the current window, its true in the case of text is present and false if the text is not present. Store elementPresent is used to evaluate whether the element is the current window. It’s true if it’s present or else stores false.

Q18) Where can you find the command description in the Selenium IDE?

Reference Section is where the command of description can be seen.

Q19) Where can you see the Test Execution results in the Selenium IDE?

Log Window in Selenium IDE is the area where test execution results are seen.

Q18) How to locate elements with Xpath text?

It can be using the method of text()

xPathExpression = //*text()=’username’]

Q19) What is the difference between / and // in XPath?

/ – Its a single slash used for creating an Xpath along with an absolute path. Here, the Xpath will make use of the state node in a document as the initial selection.
// – it’s a double slash used for creating an Xpath in a relative path. Here, the Xpath can start the selection from all place within the document.

Q20) What are the elements you need to pass in selenium?

Port Number
URL
Host
Browser

Q21) Mention the difference between getwindowhandle(), and getwindowhandles()?

getwindowhandle(): it is used to receive the current browser address from their control and the string data type is considered as their return type.
getwindowhandles(): it is used for receiving the open browser address and Set<String> is the return data type.

Q22) What do you mean by Selenese and their types?

Selenese is a collection of Selenium commands used to run a test. There are three Selenese namely

Actions: used to perform operations and interactions with the targeted elements.
Accessors: used to store value is a variable.
Assertions: used as a checkpoint.

Q23) What are the different types of TestNG listeners?

IConfigurable
IexecutionListener
Ihookable
IinvokedMethodListener2
Ireporter
ItestListener
IannotationTransformer
IinvokedMethodListener
IconfigurationListener
ImethodInterceptor
IsuiteListener

Q24) What do you mean by BreakPoints and Start points in Selenium?

Breakpoints: used for stopping the code execution. They enable you in verifying that your code works perfectly as expected.
Start points: denotes the point from where the execution is going to start. Used for running a test script from the middle of the code or from a breakpoint.

Q25) What do you mean by Junit?

JUnit is a java based framework developed especially for unit testing.

Q26) What are driver types available in WebDriver?

InternetExplorer Driver
Safari Driver
AndroidDriver
HtmlUnitDriver
FirefoxDriver
ChromeDriver
AndroidDriver
IPhoneDriver

Q27)Mention the types of the wall available in the web driver?

Explicit Walt: used for ending the execution until the condition or requirements are over.
Implicit Walt: used for providing a waiting time as a default time between every command or step across the complete test script.

Q28) What is the reason why Python is preferred over Java in Selenium?

Java programs always run slowly when compared to Python programs.
Python is more compact and simple when compared to Java programs.
Python dynamically types whereas Java sticks with static typing.
Python make use of the indentation whereas Java uses traditional braces to end and start blocks.

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