Selenium Interview Questions

Introduction

A software development life cycle (SDLC) is incomplete without a testing phase. Custom software development companies hire skilled testers in their teams to ensure that the software applications they build match the clients’ requirements and are devoid of technical issues. Selenium is a software testing tool that streamlines testing procedures and relieves users from performing manual tasks. Bringing a sigh of relief to professionals who tested software applications manually, Selenium is used as a suite of testing tools. The open-source tool is available for everyone and allows users to perform tests on multiple operating systems, including Linux, Mac, and Windows. In the age of digitization, the demand for Selenium Testing Engineers has significantly increased. As organizations across the globe are automating their business processes, they need IT professionals who are skilled in using tools like Selenium. If you wish to build a fruitful career as a Selenium expert, you can do so by mastering the tool and understanding its practical applications. Before you approach a recruiter for a Selenium job, here are a few important Selenium interview questions and answers that will help you prepare for the interview rounds:

Selenium Interview Questions For Freshers

Let us start with Selenium interview questions suited for beginners with little to no work experience in the domain:

The key components of the Selenium suite include Selenium IDE, Selenium Remote Control, Selenium WebDriver, and Selenium Grid. Selenium IDE is a Firefox or Chrome plug-in created to create automation scripts at a greater speed. It records user actions on web browsers and exports the same as reusable scripts. Selenium Remote Control (RC) is a server helping users write application tests in multiple programming languages. It accepts commands from the test script and sends them to the browser in the form of Selenium core JavaScript commands.

Selenium WebDriver is an important programming interface used for creating and running test cases by making provisions to act on web elements. It does not require an additional server like Selenium RC and interacts natively with browser applications. Selenium Grid is a component designed to distribute commands to multiple machines at once. It helps users in parallel distribution of tests on multiple browsers and operating systems in a hassle-free way. Selenium Grid is highly flexible and integrated with other suite components to ensure simultaneous execution.

Yes, Selenium testing is not devoid of limitations. Here are a few such limitations every aspiring Selenium expert should know:

Being an open-source tool, Selenium does not have dedicated tech support to tackle user queries and offer personalized solutions
If you need to test desktop and mobile applications, Selenium should be integrated with third-party tools like TestNG and Appium
It offers limited support for image testing
Selenium does not come with an in-built facility for test management and reporting
Components like Selenium WebDriver require users to have basic programming knowledge.

Selenium 2.0 was invented to simplify automated test development for web applications. It is the combination of the original Selenium project and the WebDriver project. Selenium 3.0, on the other hand, is a tool that acts as Selenium 2.0’s extension. It is completely backward compatible and is devoid of Selenium RC. Moreover, the new version comes with multiple bug fixes and improved stability.

Advanced Selenium Interview Questions

Let us now move on to Selenium interview questions for experienced professionals:

Yes, it is possible to type in a textbox without sendKeys() with the help of a JavaScriptExecutor. Here’s an example: JavaScriptExecutor jse = (JavaScriptExecutor) driver; jse.executeScript(“document.getElementById(‘email’).value=abc.efg@xyz.com);

This is a Selenium feature that allows users to handle exceptions by clicking the pause icon located on the top-right corner of the IDE. Once the script finds an exception, it pauses at that statement and starts a debug mode. As the whole test case does not fail here, it allows the user to rectify the error.

Test automation refers to the process of controlling the execution of tests and comparing the results with expected outcomes using a specialized software solution. It reduces the time, effort, and cost needed to test software applications by automating a range of different manual tasks. This also allows testers to work on critical test cases.

The biggest benefit of automation testing is that it saves your time and effort. Like any other process automation activity, automation testing speeds up the software testing process by automating repetitive tasks, especially when it comes to running the same test cases across different browsers several times. Also, automation testing improves the accuracy of your software tests. It lets you eliminate human errors and ensure that all your tests are carried out in a precise and organized way. This helps users test complex applications where they cannot afford even trivial errors.

Here are a few common automation testing tools used for non-functional automation:

WebLoad
JMeter
LoadRunner
Neoload
HP Performance Center
Apache
Gatling
Silk Performer

Here are a few automation tools that can ensure continuous and seamless testing by integrating with Selenium:

Azure DevOps
enkins
CircleCI
Travis CI
HBitbucket Pipelines
AWS CodePipeline

XPath is a language used by developers to address parts of an XML document. It is also used by technologies like XSLT to access data within XML documents. with XPath, you can navigate through different elements and attributes in an XML document. It is a critical element in the XSLT standard and integral to processing XML documents.

In XPath, “/” is used for selecting an element according to its absolute location. On the other hand, “//” is used for selecting an element according to its relative location.

The Final Word

These were some of the most common and important ReactJS interview questions and answers you should keep in mind if you are applying for a job as a ReactJS developer. Make sure you know the development framework like the back of the hand and are capable of applying the theoretical knowledge to solve your clients’ problems. Depending on the designation you are applying for and the experience you possess, prepare yourself in a way that the recruiters find value in bringing you on board!

Frequently Asked Questions

Why are Selenium experts needed in the industry today?

In 2023, we live in a world where process automation is the need of the hour. Almost every business process carried out across all major industries can be automated for faster and better outcomes. Selenium brings this automation to software testing processes. Skilled and competent Selenium experts are needed in the industry to help organizations test their software applications with the right speed, ease, and efficiency.

What is the average salary of a Selenium Automation Tester in India?

The salary of a Selenium Automation Tester in India can range from ₹3.5 lacs to ₹14 lacs. If you upskill yourself and become a master of Selenium, you can demand a package as big as ₹43 lacs per annum.

Do big tech companies use Selenium? If yes, name a few.

Yes, many big tech companies use Selenium to test their software solutions. Here are a few of them:

Microsoft
Google
Salesforce
IBM
Amazon
Meta
eBay
Twitter
Adobe
Mozilla

Does learning Selenium guarantee a sustainable job?

As long as organizations will build software applications, they will need reliable testing tools. Rest assured that your skills as a Selenium expert will always be relevant in the industry, provided you upskill yourself and stay in tune with modern trends.

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Selenium Interview Questions

Introduction