In this guide, we’ve gathered the top 50 regularly asked Selenium Interview questions spanning Selenium IDE, Selenium RC, Selenium Grid, and Selenium WebDriver interview questions.
Before we delve into the guide, let’s take a quick look at what you can expect from our Selenium article series:
Recommended IPTV Service Providers
- IPTVGREAT – Rating 4.8/5 ( 600+ Reviews )
- IPTVRESALE – Rating 5/5 ( 200+ Reviews )
- IPTVGANG – Rating 4.7/5 ( 1200+ Reviews )
- IPTVUNLOCK – Rating 5/5 ( 65 Reviews )
- IPTVFOLLOW -Rating 5/5 ( 48 Reviews )
- IPTVTOPS – Rating 5/5 ( 43 Reviews )
This guide is the final session in our Selenium online training series, which consists of over 30 in-depth tutorials. We hope you found these tutorials insightful and they’ve helped you kickstart your learning process. If you’re new here, please refer to the first tutorial in this training series.
Additionally, take a peek at “The Premier Online Selenium Training Course” to learn Selenium automation tool under the guidance of an expert holding over 10 years of automation experience with Selenium.
Leading 50 Selenium Interview Questions and Answers
Let’s begin.
Q #1) Can you define Automation Testing?
Automation testing, also known as Test Automation, refers to the process of automating manual testing procedures to evaluate the application/system being subjected to the test. Automation testing involves using a separate testing tool that facilitates the creation of test scripts which can be executed repeatedly without the need for manual intervention.
Q #2) What advantages does Automation Testing offer?
The perks of automation testing comprise:
- Facilitates execution of repeated test cases
- Assists in testing a large test matrix
- Allows for parallel execution
- Promotes unattended execution
- Improves accuracy by diminishing errors generated by humans
- Saves time and resources
Q #3) Why choose Selenium as a testing tool?
Selenium:
- Is a freely available open-source tool
- Boasts a large user base and supportive communities
- Provides cross-browser compatibility (Firefox, Chrome, Internet Explorer, Safari, etc.)
- Has extensive platform compatibility (Windows, Mac OS, Linux, etc.)
- Supports multiple programming languages (Java, C#, Ruby, Python, Pearl, etc.)
- Benefits from active and frequent repository developments
- Supports distributed testing
Q #4) Define Selenium. What are the distinctive Selenium components?
Selenium is among the most well-known automated testing suites. It’s developed to assist and promote automation testing of functional aspects of web-based applications across a broad array of browsers and platforms. Selenium isn’t merely a single tool or utility – it’s a suite made up of various testing tools. This Selenium suite incorporates components such as:
- Selenium Integrated Development Environment (IDE): Selenium IDE is a tool for recording and playback, distributed as a Firefox Plugin.
- Selenium Remote Control (RC): Selenium RC is a server that lets users create test scripts in their preferred programming language and run them within multiple browsers.
- Selenium WebDriver: WebDriver is a tool that interacts directly with web browsers and automates them using their native compatibility.
- Selenium Grid: Selenium Grid is utilized for distributing test execution across numerous platforms and environments concurrently.
Q #5) What types of testing are supported by Selenium?
Selenium supports the following testing types:
- Functional Testing
- Regression Testing
Q #6) What are the limitations of Selenium?
The drawbacks of Selenium include:
- Selenium only supports testing of web-based applications
- Mobile applications cannot be tested utilizing Selenium
- Captcha and barcode readers can’t be tested with Selenium
- Reports can only be produced using third-party tools like TestNG or JUnit
- As Selenium is a free tool, there is no direct vendor support available, although there are numerous supportive communities open for all
- Users need to have prior programming language knowledge
Q #7) Distinguish between Selenium IDE, Selenium RC, and WebDriver.
Characteristic | Selenium IDE | Selenium RC | WebDriver |
---|---|---|---|
Browser Compatibility | Selenium IDE only supports Firefox | Selenium RC boasts extensive browser support | WebDriver has broad browser support |
Record and Playback | Selenium IDE comes with record and playback support | Selenium RC doesn’t support record and playback | WebDriver lacks record and playback support |
Requirement for Server | Selenium IDE doesn’t necessitate a server | Selenium RC requires a server | WebDriver operates without a server |
Design | Selenium IDE is a framework built on JavaScript | Selenium RC operates on a JavaScript-based framework | WebDriver communicates directly with web browsers |
Object-Oriented Property | Selenium IDE isn’t object-oriented | Selenium RC is semi object-oriented | WebDriver is purely object-oriented |
Support for Dynamic Finders | Selenium IDE doesn’t support dynamic finders | Selenium RC lacks support for dynamic finders | WebDriver supports dynamic finders |
Handling Alerts, Navigations, Dropdowns | Selenium IDE doesn’t explicitly support the handling of alerts, navigations, dropdowns | Selenium RC also lacks explicit support for handling alerts, navigations, dropdowns | WebDriver provides utilities and classes for handling alerts, navigations, and dropdowns |
WAP (iPhone/Android) Testing | Selenium IDE does not offer testing support for iPhone/Android applications | Selenium RC also can’t test iPhone/Android applications | WebDriver is designed to support testing for iPhone/Android applications |
Listener Support | Selenium IDE lacks support for listeners | Selenium RC doesn’t support listeners | WebDriver allows the implementation of listeners |
Speed | Selenium IDE is fast as it operates as a web browser plugin | Selenium RC isn’t as quick as WebDriver, as it communicates with Selenium Core | WebDriver communicates directly with web browsers and operates faster |
Q #8) When is it advisable to use Selenium IDE?
Being the simplest and most straightforward tool within the Selenium Package, Selenium IDE comes with a record and playback feature, making it incredibly easy to learn, even with minimal know-how of programming languages. It’s the ideal tool for beginners.
Q #9) Explain Selenese.
Selenese is the language utilized for writing test scripts in Selenium IDE.
Q #10) What types of locators does Selenium support?
Selenium provides support for the following types of locators:
- ID
- ClassName
- Name
- TagName
- LinkText
- PartialLinkText
- Xpath
- CSS Selector
- DOM
Q #11) Differentiate between ” / ” and ” // ” in XPath.
Single Slash ” / “: A single slash is deployed to create Xpath featuring an absolute path, and it commences selection from the document node/start node.
Double Slash ” // “: A double slash is employed to create Xpath boasting a relative path, and it can initiate selection from anywhere within the document.
Q #12) What is the Same-origin policy? How can it be managed?
The Same-origin policy is a safety feature that blocks a web page from initiating requests to a separate domain. It denies access to the DOM of a document originating from a different source. Selenium Remote Control was devised to manage the Same-origin policy.
Q #13) When should Selenium Grid be implemented?
Selenium Grid should be used whenever you need to execute identical or varying test scripts simultaneously on numerous platforms and browsers. It facilitates distributed test execution, testing under diverse environments, and considerably reduces execution time.
Q #14) What do Selenium 1 and Selenium 2 signify?
Selenium 1 denotes Selenium RC, while Selenium 2 is a merger of Selenium RC and WebDriver.
Q #15) What is the latest tool in Selenium?
The most recent tool in Selenium is WebDriver.
Q #16) How can you launch a browser using WebDriver?
The syntax below can be used to launch a browser:
WebDriver driver = new FirefoxDriver();
WebDriver driver = new ChromeDriver();
WebDriver driver = new InternetExplorerDriver();
Q #17) What are the different types of drivers available in WebDriver?
The various drivers available in WebDriver include:
- FirefoxDriver
- InternetExplorerDriver
- ChromeDriver
- SafariDriver
- OperaDriver
- AndroidDriver
- IPhoneDriver
- HtmlUnitDriver
Q #18) Can you name the different types of waits available in WebDriver?
The various wait types available in WebDriver are:
- Implicit Wait
- Explicit Wait
Q #19) How to enter text in a textbox using Selenium?
To insert text in a textbox using Selenium, you can use the sendKeys() method:
<em