How do I prepare for Selenium automation testing interviews?

Important topics and interview preparation for automation test engineer. Here are the list of contents explained with all useful links and updates. 

Now if we assume you are ready to go and get with this career move.

Time is not a constraint, it purely depends on person’s ability to grasp

Selenium-automation-interview-preparation

1. Firstly, you need to learn any programming and scripting language like JAVA, Python, Ruby,etc.
2. Get familiar with basic concepts like OOPS concepts, various Data Types and Variables, Operators, Decision Making, Arrays, Loops, Classes and Objects, Class Constructors, String Classes, etc.
3. Now coming to selenium webdriver part start with Set Up/Configure Selenium WebDriver
4. Get acquainted with various WebDriver Commands
   
   Below are the topics which you need to be clear to be a Professional Selenium Tester;

1. Core Java
2. Selenium WebDriver
3. HTML traversal & DOM concepts
4. CSS Selectors & XPATH
5. JavaScript for Selenium Webdriver
6. TestNG concepts for test organization, prioritization & batch execution
7. Github concepts for source code management
8. Jenkins for CD/CI
9. Basic understanding of different frameworks - keyword driven, data driven, hybrid, POM
10. Basic understanding of the workings of their current framework - folder structure, object repositories, reusable functions, test data flow, reporting libraries etc.

Note that topics like Database connection (JDBC) or interaction with external files like CSV, XML, JSON etc. should be covered in core java.

You can prepare for above topics from below mentioned sources -

Core Java

• Read Head First Java
• Solve HackerRank problems
• Master collections framework

Selenium WebDriver Functions

• Go through WebDriver Class Hierarchy and read the constructors and methods of important classes like WebElement, By, Exceptions etc.
• Read point# 8 to 18 of WebDriver Spec thoroughly

HTML traversal & DOM concepts

• Go through this HTML DOM tutorial

CSS Selectors & XPATH

• Read this article for CSS Selectors - sauce labs and MDN articles
• Go through this tutorial for XPATH

JavaScript for Selenium Webdriver

• This article will show you how javascript can be useful in selenium

TestNG concepts

• Get introduction of TestNG from here
• Read this documentation thoroughly

Github and Jenkins concepts

• GitHub Beginner tutorial
• Go through this tutorial

Test Automation Frameworks

• Read this comprehensive article on frameworks

Once you complete above mentioned tutorials and articles, you can practice selenium interview questions from below mentioned sources -

50 Most Popularly Asked Selenium Interview Questions and Answers - Selenium Tutorial #33

Top 100 Selenium Interview Questions & Answers

Most Popular Test Automation Framework Interview Questions

Referrals : Quora

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