Selenium Interview Question and Answers
What is selenium
Selenium test automation suite which is used for automatic testing internet or web based applications. It supports various programming languages, various browsers and platforms.
What are the different types of automation testing
Smoke testing
regression testing
sanity testing
What are the components of selenium
Selenium IDE
Selenium WebDriver
Selenium grid
Selenium RC
Explain about selenium IDE
IDE stands for integrated development environment. Selenium IDE is a fire fox plugin. It is mainly used for creating test cases and executing test cases. Selenium WebDriver and selenium RC are used for executing test cases.
Which is the browser supports selenium IDE
Firefox is the one and only browser that supports selenium IDE
What are the reasons behind to select selenium
It is free and open source
It supports cross browser compatibility
it supports multiple programming languages such as Java python PHP and perl.
It has a very large user base.
Explain about selenium WebDriver
Selenium WebDriver directly communicates with the web browser and also supports various programming languages like Java python and PHP.
Explain about selenium grid
It is mainly used to run the tests in different computers and various platforms.
Explain about selenese
Syllabus of the set of commands used in selenium IDE that runs tests.
What are the different types of WebDriver API available
Chromedriver, firefoxdriver, internet explorer driver, opera driver, Android driver and event firing WebDriver.
List the locators available in selenium WebDriver
TestNG and Junit to open source frameworks supported by selenium
What is a hub in selenium grid
It is a server which controls the test execution in various computers.
What is the node in selenium grid
It is a machine which is attached to the hub.
What are the advantages of selenium grid
Attalus running test cases in parallel and saves the execution time. It also allows multi browser testing.
It allows us to execute test cases on multiplatforms
What are the various programming languages supported by selenium WebDriver
Java
python
PHP
Ruby
Perl
C #
List the operating systems that are supported by selenium WebDriver
Windows, Linux and Apple.
What are the locators that are available in selenium
It has 8 different types of locators
1. ID
2. Xpath
3. name
4. class name
5. tag name
6. link text
7. CSS
8. selected partial link text
What is Xpath
It is primarily used to to locate elements. We can navigate true elements and attributes to locate webelements like ok button checkbox text box image on a webpage.
What is implicit and explicit wait
Implicit wait is used to provide a default waiting for 30 seconds between the consecutive test whereas explicit wait it is used to to halt execution until a particular condition is given.
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