Selenium Interview Questions and Answers, Selenium Interview Questions and Answers Freshers, Selenium Interview Questions and Answers, Selenium Interview Questions
Before getting on to the Selenium interview questions, the student must know that the Hadoop is a continuously varying field which needs the students as well as professionals to upgrade their skills with the new features and knowledge, to get fit for the jobs associated. This post related to Selenium Interview Questions and Answers, Selenium Interview Questions and Answers Freshers, Selenium Interview Questions and Answers, Selenium Interview Questions will help you let out find all the solutions that are frequently asked in you upcoming Selenium interview
Over thousands of vacancies available for the Selenium developers, experts must be acquaintance with all the component of Selenium technologies. This is necessary for the students in order to have in-depth knowledge of the subject so that they can have best employment opportunities in the future. Knowing every little detail about Selenium is the best approach to solve the problems linked with problem.
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First of all, let us tell you about how the Selenium technology is evolving in today’s world and how demanding it is in the upcoming years. In fact, according to one study, most of the companies and businesses have moved to the Selenium. Now, you cannot predict how huge the future is going to be for the people experienced in the related technologies.
Hence, if you are looking for boosting up your profile and securing your future, Selenium will help you in reaching the zenith of your career. Apart from this, you would also have a lot of opportunities as a fresher.
These questions alone are omnipotent. Read and re-read the questions and their solutions to get accustomed to what you will be asked in the interview. These Selenium interview questions and answers will also help you on your way to mastering the skills and will take you to the giant world where worldwide and local businesses, huge or medium, are picking up the best and quality Selenium professionals.
This ultimate list of best Selenium interview questions will ride you through the quick knowledge of the subject and topics like Test Automation, Selenium IDE, Test Suite, Pattern Matching. This Selenium interview questions and answers can be your next gateway to your next job as a Selenium expert.
These are very Basic Selenium Interview Questions and Answers for freshers and experienced both.
Q1: What is Selenium and what is composed of?
A1: Selenium is a suite of tools for automated web testing. It is composed of
- Selenium IDE (Integrated Development Environment) : It is a tool for recording and playing back. It is a firefox plugin
- WebDriver and RC: It provide the APIs for a variety of languages like Java, .NET, PHP, etc. With most of the browsers Webdriver and RC works.
- Grid: With the help of Grid you can distribute tests on multiple machines so that test can be run parallel which helps in cutting down the time required for running in browser test suites
Q2: How will you find an element using Selenium?
A2: In Selenium every object or control in a web page is referred as an elements, there are different ways to find an element in a web page they are
• ID
• Name
• Tag
• Attribute
• CSS
• Linktext
• PartialLink Text
• Xpath etc
Q3: List out the test types that are supported by Selenium?
A3: For web based application testing selenium can be used
The test types can be supported are
a) Functional, Learn More about Functional Testing.
b) Regression
For post release validation with continuous integration automation tool could be used
a) Jenkins
b) Hudson
c) Quick Build
d) CruiseCont
Q4: Explain what is assertion in Selenium and what are the types of assertion?
A4: Assertion is used as a verification point. It verifies that the state of the application conforms to what is expected. The types of assertion are “assert” , “verify” and “waifFor”.
Q5: Mention what is the use of X-path?
A5: X-Path is used to find the WebElement in web pages. It is also useful in identifying the dynamic elements.
Refer Complete Guide on XPath
Q5: Explain the difference between single and double slash in X-path? Single slash ‘/ ’
A5:
• Single slash ( / ) start selection from the document node
• It allows you to create ‘absolute’ path expressions
Double Slash ‘// ’
• Double slash ( // ) start selection matching anywhere in the document
• It enables to create ‘relative’ path expressions
Q6: What is Automation Testing?
A6: Automation testing or Test Automation is a process of automating the manual process to test the application/system under test. Automation testing involves the use of a separate testing tool which lets you create test scripts which can be executed repeatedly and doesn’t require any manual intervention.
Q7: What are the benefits of Automation Testing?
A7: Benefits of Automation testing are:
1. Supports execution of repeated test cases
2. Aids in testing a large test matrix
3. Enables parallel execution
4. Encourages unattended execution
5. Improves accuracy thereby reducing human-generated errors
6. Saves time and money
Q8: Why should Selenium be selected as a test tool?
A8: Selenium
1. is a free and open source
2. have a large user base and helping communities
3. have cross Browser compatibility (Firefox, Chrome, Internet Explorer, Safari etc.)
4. have great platform compatibility (Windows, Mac OS, Linux etc.)
5. supports multiple programming languages (Java, C#, Ruby, Python, Pearl etc.)
6. has fresh and regular repository developments
7. supports distributed testing
Q9: What is the difference between assert and verify commands?
A9: Assert: Assert command checks whether the given condition is true or false. Let’s say we assert whether the given element is present on the web page or not. If the condition is true then the program control will execute the next test step but if the condition is false, the execution would stop and no further test would be executed.
Verify: Verify command also checks whether the given condition is true or false. Irrespective of the condition being true or false, the program execution doesn’t halt i.e. any failure during verification would not stop the execution and all the test steps would be executed.
Q10: When should I use Selenium Grid?
A10: Selenium Grid can be used to execute same or different test scripts on multiple platforms and browsers concurrently so as to achieve distributed test execution, testing under different environments and saving execution time remarkably.
Q11: What do we mean by Selenium 1 and Selenium 2?
A11: Selenium RC and WebDriver, in a combination, are popularly known as Selenium 2. Selenium RC alone is also referred as Selenium 1.
Q12: Which is the latest Selenium tool?
A12: WebDriver
Q13: How do I launch the browser using WebDriver?
A13: The following syntax can be used to launch Browser:
WebDriver driver = new FirefoxDriver();
WebDriver driver = new ChromeDriver();
WebDriver driver = new InternetExplorerDriver();
Q14: What is Selenium IDE?
A14: Selenium IDE (Integrated Development Environment) is a Firefox plugin. It is the simplest framework in the Selenium Suite. It allows us to record and playback the scripts. Even though we can create scripts using Selenium IDE, we need to use Selenium RC or Selenium WebDriver to write more advanced and robust test cases.
Q15: What is Selenese?
A15: Selenese is the language which is used to write test scripts in Selenium IDE.
Q16: Which is the only browser that supports Selenium IDE to be used?
A16: Firefox
Q17: What is Selenium RC?
A17: Selenium RC AKA Selenium Remote control / Selenium 1. Selenium Remote Control was the main Selenium project for a long time before the WebDriver merge brought up Selenium 2. Selenium 1 is still actively supported (in maintenance mode). It relies on JavaScript for automation. It supports Java, Javascript, Ruby, PHP, Python, Perl and C#. It supports almost every browser out there.
Q18: What is Selenium WebDriver?
A18: Selenium WebDriver AKA Selenium 2 is a browser automation framework that accepts commands and sends them to a browser. It is implemented through a browser-specific driver. It controls the browser by directly communicating with it. Selenium WebDriver supports Java, C#, PHP, Python, Perl, Ruby.
Q19: What is Selenium Grid?
A19: Selenium Grid is a tool used together with Selenium RC to run tests on different machines against different browsers in parallel. That is, running multiple tests at the same time against different machines running different browsers and operating systems.
In simple words, it is used to distribute your test execution on multiple platforms and environments concurrently
Q20: What the WebDriver supported Mobile Testing Drivers do you know?
A20: Mobile Testing Drivers supported by the WebDriver are: AndroidDriver, IphoneDriver, OperaMobileDriver.
Q21: Explain the fundamental difference between XPath and CSS selector.
A21: Using CSS selector we can only move downwards in the document, using XPaths we traverse up in the document.
Q22: How can you find if an element is displayed on the screen?
A22: There are different methods, which help user to check the visibility of the web elements: isDisplayed(), isEnabled(), isSelected(). These web elements can be buttons, drop boxes, checkboxes, radio buttons, labels etc.
Q23: What is the difference between “type” and “typeAndWait” command?
A23: If you need to type keyboard key values into a text field of the web application, “type” command will be used. Another reason for its usage is selecting values of the combo box. “typeAndWait” command is used when your typing is completed and software web page start reloading.
Q24: How to check a checkBox in Selenium?
A24: The same click() method could be used for checking checkbox as well as for clicking buttons or radio buttons.
Q25: Explain the difference between close and quit command.
A25: If you need to close the current browser having focus driver.close() is used. If you need to close all the browser instances driver.quit() is used.
Q26: How can we handle window UI elements and window POP ups using selenium?
A26: Selenium is used for automating Web based application only(or browsers only). For handling window GUI elements we can use AutoIT. AutoIT is a freeware used for automating window GUI. The AutoIt scripts follow simple BASIC lanaguage like syntax and can be easily integrated with selenium tests.
Q27: What is HtmlUnitDriver?
A27: HtmlUnitDriver is the fastest WebDriver. Unlike other drivers (FireFoxDriver, ChromeDriver etc), the HtmlUnitDriver is non-GUI, while running no browser gets launched.
Q28: How to handle hidden elements in Selenium webDriver?
A28: Using javaScript executor we can handle hidden elements-
(JavascriptExecutor(driver)) .executeScript(“document.getElementsByClassName(ElementLocator).click();”);
Q29: What is Page Object Model or POM?
A29: Page Object Model(POM) is a design pattern in selenium. A design pattern is a solution or a set of standards that are used for solving commonly occuring software problems.
Now coming to POM – POM helps to create a framework for maintaining selenium scripts. In POM for each page of the application a class is created having the web elements belonging to the page and methods handling the events in that page. The test scripts are maintained in seperate files and the methods of the page object files are called from the test scripts file.
Q30: What are the advantages of POM?
A30: The advantages are POM are-
1. Using POM we can create an Object Repository, a set of web elements in seperate files along with their associated functions. Thereby keeping code clean.
2. For any change in UI(or web elements) only page object files are required to be updated leaving test files unchanged.
3. It makes code reusable and maintable.
Q31: What is an Object repository?
A31: An object repository is centralized location of all the object or WebElements of the test scripts. In selenium we can create object repository using Page Object Model and Page Factory design patterns.
Q32: What are Startpoints and Breakpoints in Selenium?
A32: Startpoints indicate the point from where the execution should begin. They can be used to run a test script from a breakpoint or the middle of the code.
Breakpoints are used to stop execution of a code. They help you verify that your code is working as expected.
Selenium Conclusion Interview FAQs
We know the list of Selenium Interview Questions and Answers, Selenium Interview Questions and Answers Freshers, Selenium Interview Questions and Answers, Selenium Interview Questions is overwhelming but the advantages of reading all the questions will maximize your potential and help you crack the interview. The surprising fact is that this Selenium interview questions and answers post covers all the basic of the Selenium technology and you have to check out the FAQs of different components of Selenium too.
However, you will be asked with the questions in the interview related to the above mentioned questions. Preparing and understanding all the concept of Selenium technology will help you strengthen the other little information around the topic.
After preparing these interview questions, we recommend you to go for a mock interview before facing the real one. You can take the help of your friend or a Selenium expert to find the loop holes in your skills and knowledge. Moreover, this will also allow you in practicing and improving the communication skill which plays a vital role in getting placed and grabbing high salaries.
Remember, in the interview, the company or the business or you can say the examiner often checks your basic knowledge of the subject. If your basics is covered and strengthened, you can have the job of your dream. The industry experts understand that if the foundation of the student is already made up, it is easy for the company to educate the employ towards advance skills. If there are no basics, there is no meaning of having learnt the subject.
Therefore, it’s never too late to edge all the basics of any technology. If you think that you’ve not acquired the enough skills, you can join our upcoming batch of Selenium Training in Noida. We are one of the best institute for Selenium in noida which provide advance learning in the field of Selenium Course. We’ve highly qualified professionals working with us and promise top quality education to the students.
We hope that you enjoyed reading Selenium Interview Questions and Answers, Selenium Interview Questions and Answers Freshers, Selenium Interview Questions and Answers, Selenium Interview Questions and all the FAQs associated with the interview. Do not forget to revise all the Selenium interview questions and answers before going for the Selenium interview. In addition to this, if you’ve any doubt or query associated with Selenium, you can contact us anytime. We will be happy to help you out at our earliest convenience. At last, we wish you all the best for your upcoming interview on Selenium Technology.
