Selenium WebDriver Interview Questions & Answers
Selenium WebDriver Interview Questions & Answers!! Looking for some materials in Selenium WebDriver? Put an end to the search! This blog provides complete Selenium WebDriver interview stuff, including useful questions and simple answer options.
Selenium WebDriver tests web apps using browser automation. It’s used by the Selenium Suite to automate web browsing and develop test scripts for web apps across browsers and platforms.
Then why to wait let’s start the interview questions of Selenium WebDriver.
Selenium WebDriver Interview Questions & Answers:
1. What is the basics of Selenium WebDriver?
Selenium WebDriver is a popular web application automation tool that focuses on the advantages and limitations of manual testing, such as time-consuming, error-prone, and limited scope.
2. What are some common use cases for Selenium WebDriver?
One common use case is logging in to a web application using username and password. As a tester, one must write multiple test cases using various data sets, such as valid credentials, invalid credentials, and null values.
3. What is performance testing?
Performance testing requires collecting metrics on various performance measures and executing multiple tests manually. However, this is not feasible and can lead to tedious and inefficient tasks.
4. What are some features of Selenium WebDriver?
Selenium WebDriver allows for faster execution, less error proneness, and frequent execution of tests. It is also designed to handle both simple and complex use cases and is open source and platform independent.
5. What programming languages does Selenium support?
Selenium supports various programming languages, such as Java, Python, C-sharp, Ruby, and PH P, and can be written in any language they prefer or like.
6. What are the three major components of the Selenium suite?
The three major components of the Selenium suite are Selenium IDE, Selenium RC, and Selenium WebDriver.
7. What is Selenium IDE (Integrated Development Environment)?
The simplest Selenium tool is IDE (Integrated Development Environment). It is an integrated development environment that was once a Firefox addon that recorded playback. New Selenium IDE is cross-browser and works with Firefox and Chrome.
8. What is Selenium RC (Remote Control)?
Selenium RC (Remote Control) is used to write web application tests in different programming languages. It interacts with the browser using the RC server, which communicates with the web process through a simple HTTP (Hypertext Transfer Protocol) get-and-post request.
9. What is the Selenium WebDriver?
The Selenium WebDriver is a programming interface to create and execute test cases. It is a successor of RC due to its drawbacks.
10. What is Selenium?
Selenium is a popular and widely used automation tool that allows users to test web applications on various browsers. It is not a single tool but a suite of tools that work together to automate web applications.
11. How do Selenium IDE, Selenium RC, and Selenium WebDriver work together?
These tools work together to provide a comprehensive solution for automating web applications and ensuring their success.
12. What is the WebDriver in Selenium?
The WebDriver is a key component of Selenium that interacts directly with the browser, providing an advantage over RC.
13. What is the fourth component of Selenium?
The fourth component of Selenium is the Selenium grid, which is used to run multiple test scripts on multiple machines simultaneously.
14. What is reverse Selenium remote control?
Reverse Selenium remote control is a technique used to run multiple test scripts on multiple machines simultaneously by tricking the browser into thinking that the Selenium core and web application under test are in the same domain.
15. What Selenium 3.0 is and how it works?
Selenium 3.0 was the version of Selenium that completely deprecated the Selenium core and only made the WebDriver available.
16. What is the Selenium grid used for?
The Selenium grid is used to run multiple test scripts on multiple machines simultaneously, which is particularly useful in real-time environments where multiple browsers and operating systems are needed.
17. What is the difference between the WebDriver and RC?
The WebDriver has a simpler architecture than RC, and it interacts directly with the browser, providing an advantage over RC.
18. What are the major features expected in Selenium 4?
Some of the major features expected in Selenium 4 include moving towards W3C WebDriver standardization one and an improved ID, possibly a GUI-based grid.
19. How has Selenium evolved over time?
Selenium has evolved over time, leading to the development of various versions, each with its own unique features and advantages.
20. What is the Selenium server?
The Selenium server acts as a proxy, allowing the execution of commands to occur through the RC server to the web browser. The code then executes the commands as JavaScript commands on the browser, sending back the results to the RC server and sending it back to the test script.
21. What is the difference between Selenium RC and Selenium WebDriver?
Selenium’s simpler architecture than RC allows it to interface directly with the browser’s native support automation without a server. Direct communication speeds up test execution and simplifies the architecture compared to RC.
22. What is Selenium driver?
Selenium driver is a more mature and simpler version of RC, which offers more straightforward commands for testing web applications.
23. What are web locators in Selenium?
Web locators are used to identify web elements or objects in a webpage.
24. What are WebDriver methods in Selenium?
WebDriver methods are used to interact with web elements or objects in a webpage.
25. What is the benefit of using Selenium WebDriver?
Selenium WebDriver is faster and more efficient than Selenium R C since it communicates directly with the browser. The browser driver for each browser you want to use interprets the script instruction.
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The Selenium headless browser is a browser that runs without a graphical user interface (GUI), making testing faster as it doesn’t need a real browser for testing.
27. What are the four components of Selenium WebDriver?
The four components of Selenium WebDriver are client libraries, JSON wire protocol, grid, and reporting capabilities.
28. What is the client library?
The client library is a software component that allows users to interact with browsers using any of the supported programming languages. It is available for each language and can be downloaded from the Selenium website.
29. What is the JSON wire protocol?
JSON wire protocol is a web data exchange standard. Selenium sends the browser driver a JSON payload. These browser-specific drivers connect to the real browser without revealing its fundamental logic.
30. What is the grid?
The grid is a feature of Selenium WebDriver that helps achieve parallel execution on multiple machines and processes. It is used to test applications that require testing on multiple browsers and operating systems.
31. What are the limitations of Selenium WebDriver?
The limitations of Selenium WebDriver include not being able to test mobile applications, which require a framework like APM, limited reporting capabilities, and limited image testing.
32. What is test reporting in Selenium?
Selenium supports multiple tools for generating reports, such as test, G report, and extent reports. These tools can be integrated with Selenium to generate beautiful reports.
33. What is the difference between Selenium and APM (Application performance monitoring)?
Mobile application automation framework APM is different from online application automation tool Selenium. Although different, Selenium may interact with APM to parallelize execution on several machines and processes.
34. What is the “get current URL()” command used for?
The “get current URL()” command is used to get the current URL of a page. It is also used to print the current URL on the console.
35. What is the “get page source()” method used for?
The “get page source()” method dumps the complete HTML page source on the console, which is not very useful unless you need to look at anything in your HTML pages.
36. What are the two “get” commands related to Windows handles?
getWindowHandles( ) and getWindowHandles( ) handle windows in Selenium. The user has to switch from the parent window to the child window to work on them using switchTo( ) method. To close windows two methods exist driver. close( ) and driver.
37. What is the “navigate” set of commands used for?
The “navigate” set of commands is used to refresh your browser pitch.
38. What is the “send keys” technique used for?
Input from the keyboard can be sent to text boxes within an application using the “send keys” technique.
39. What is Eclipse used for in Selenium testing?
Eclipse is used for writing test scripts in Selenium testing.
40. What browsers does Selenium support?
Selenium supports multiple browsers like Firefox, Chrome, Internet Explorer, Edge, Safari, and Oper
41. What is required to use Selenium?
The use of browser libraries or drivers maintained independently by organizations.
42. How does Selenium interact with browsers?
Selenium interacts with these browsers through the browser drivers corresponding to the pack, which can be downloaded and configured for the entire environment setup.
43. On which operating systems does Selenium support?
Selenium supports multiple operating systems, allowing users to configure Selenium on Windows, Mac OS, or Linux.
44. What is the importance of using the WebDriver interface when designing automation frameworks?
The importance of using the WebDriver interface when designing automation frameworks is that it allows for multiple browsers to be executed simultaneously, which can save time and reduce the risk of errors.
45. How can configuration be stored in external files for automation frameworks?
Configuration can be stored in external files like flag files, Excel files, or CSV files. These files are then used to execute test cases based on the configuration.
46. What is the difference between a class, interface, and object in Selenium?
An object in Selenium is a specific instance of a class with its own collection of properties and methods; an interface specifies the contract between various classes; and a class defines the behaviour of an object.
47. What is an interface in Java?
An interface in Java is a class that implements various browser drivers, such as Chrome driver, Edge driver, and WebDrivers. And here you can learn more about Selenium WebDriver java interview questions.
48. What is the super interface of the WebDriver in Java?
The super interface of the WebDriver in Java is the search context, which is the top level of the interface for the WebDriver.
49. What is the sub interface for the WebDriver and web element for the search context in Java?
The sub interface for the WebDriver and web element for the search context in Java are classes that implement the search context interface.
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1)What is Selenium WebDriver?
1. A tool for faster, more error-free, and frequent test execution
2. Web application testing automation on several browsers
3. A manual testing utility that highlights its pros and cons
4. A tool that requires manual performance metrics collection and test execution.
2) What is the common use case for Selenium WebDriver?
1. Logging in to a web application using username and password
2. Performance testing
3. Manual testing
4. Working on a child model where code is being churned out by developers
3)What does Selenium WebDriver facilitate?
1. Testing web apps on different browsers automatically
2. Collecting performance measurements and manually conducting tests
3. Addressing manual testing difficulties through faster execution, less errors, and frequent test execution
4. All of the above
4) What is Selenium IDE?
1. A record and replay back tool used for demo purposes
2. A programming language used for web application testing
3. A successor of Selenium RC
4. A tool that interacts with the browser using the RC server
5) What programming languages does Selenium support?
1. Java, Ruby, and C-sharp
2. Python, Ruby, and PHP
3. Java, Python, and C-sharp
4. Java, Python, Ruby, and PHP
6) What is the most important component of Selenium?
1. Selenium IDE
2. Selenium RC
3. Selenium WebDriver
4. All of the above
7) What is the record and replay back tool called in Selenium?
1. Selenium IDE
2. Selenium CR
3. Selenium driver
4. Selenium 1.org
8) What does Selenium RC do?
1. It uses the R C server to connect with the browser via a HTTP get-and-post request.
2. It allows users to test web applications on various browsers.
3. It is a programming interface to create and execute test cases.
4. It is a successor of Selenium WebDriver.
9) What does the Selenium WebDriver do?
1. Direct browser interaction gives it an edge over R C.
2. Users can test web apps on different browsers.
3. A programming interface for test case creation and execution.
4. Selenium R C successor.
10) What does the Selenium grid do?
1. It simultaneously runs test scripts on several machines.
2. User-friendly cross-browser testing is facilitated.
3. It is an API for developing and running test scenarios.
4. The Selenium WebDriver has been superseded by it.
12) What are the major features expected in Selenium 4.0?
1. Moving towards W3C WebDriver standardization one
2. Improved ID, possibly a GUI-based grid
3. Both 1 & 2
4. None of the above
13) What is the architecture of Selenium RC?
1. Low-level, requiring no separate RC server
2. High-level, requiring a separate RC server
3. Medium-level, requiring a separate RC server and browser
4. None of the above
14) What is the purpose of the Selenium WebDriver?
1. Its direct browser interaction gives it an edge over RC.
2. It solves Selenium RC’s difficult architecture.
3. A programming interface for test case creation and execution.
4. It replaces Selenium RC
15) What is the programming interface used in the Selenium WebDriver?
1. The browser’s native support automation is used.
2. WebDrivers are used for browser interaction.
3. Type keys and mouse commands are used.
4. Direct browser interaction gives it an edge over RC.
I think now you got an overview on selenium WebDriver interview questionsand now I hope you can spark in your next interview.
All the Best!!!
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