Selenium Interview Questions & Answers
Q1. What is Selenium?
Ans. Selenium is a set of tools that supports rapid development of test automation scripts for web based applications. Selenium testing tools provides a rich set of testing functions specifically
designed to fulfil needs of testing of a web based application.
Q2. What are the main components of Selenium testing tools?
Ans. Selenium IDE, Selenium RC and Selenium Grid
Q3. What is Selenium IDE?
Ans. Selenium IDE is for building Selenium test cases. It operates as a Mozilla Firefox add on and
provides an easy to use interface for developing and running individual test cases or entire test
suites. Selenium-IDE has a recording feature, which will keep account of user actions as they are
performed and store them as a reusable script to play back.
Q4. What is the use of context menu in Selenium IDE?
Ans. It allows the user to pick from a list of assertions and verifications for the selected location.
Q5. Can tests recorded using Selenium IDE be run in other browsers?
Ans. Yes. Although Selenium IDE is a Firefox add on, however, tests created in it can also be run in other browsers by using Selenium RC (Selenium Remote Control) and specifying the name of the test suite in command line.
Q6. What are the advantage and features of Selenium IDE?
Ans. 1. Intelligent field selection will use IDs, names, or XPath as needed
2. It is a record & playback tool and the script format can be written in various languages including
C#, Java, PERL, Python, PHP, HTML
3. Auto complete for all common Selenium commands
4. Debug and set breakpoints
5. Option to automatically assert the title of every page
6. Support for Selenium user-extensions.js file
Q7. What are the disadvantage of Selenium IDE tool?
Ans. 1. Selenium IDE tool can only be used in Mozilla Firefox browser.
2. It is not playing multiple windows when we record it.
Q8. What is Selenium RC (Remote Control)?
Ans. Selenium RC allows the test automation expert to use a programming language for maximum
flexibility and extensibility in developing test logic. For example, if the application under test returns
a result set and the automated test program needs to run tests on each element in the result set, the
iteration / loop support of programming language’s can be used to iterate through the result set,
calling Selenium commands to run tests on each item. Selenium RC provides an API and library for each of its supported languages. This ability to use
Selenium RC with a high level programming language to develop test cases also allows the automated
testing to be integrated with the project’s automated build environment.
Q9. What is Selenium Grid?
Ans. Selenium Grid in the selenium testing suit allows the Selenium RC solution to scale for test suites
that must be run in multiple environments. Selenium Grid can be used to run multiple instances of Selenium RC on various operating system and browser configurations
Ans. Selenium is a set of tools that supports rapid development of test automation scripts for web based applications. Selenium testing tools provides a rich set of testing functions specifically
designed to fulfil needs of testing of a web based application.
Q2. What are the main components of Selenium testing tools?
Ans. Selenium IDE, Selenium RC and Selenium Grid
Q3. What is Selenium IDE?
Ans. Selenium IDE is for building Selenium test cases. It operates as a Mozilla Firefox add on and
provides an easy to use interface for developing and running individual test cases or entire test
suites. Selenium-IDE has a recording feature, which will keep account of user actions as they are
performed and store them as a reusable script to play back.
Q4. What is the use of context menu in Selenium IDE?
Ans. It allows the user to pick from a list of assertions and verifications for the selected location.
Q5. Can tests recorded using Selenium IDE be run in other browsers?
Ans. Yes. Although Selenium IDE is a Firefox add on, however, tests created in it can also be run in other browsers by using Selenium RC (Selenium Remote Control) and specifying the name of the test suite in command line.
Q6. What are the advantage and features of Selenium IDE?
Ans. 1. Intelligent field selection will use IDs, names, or XPath as needed
2. It is a record & playback tool and the script format can be written in various languages including
C#, Java, PERL, Python, PHP, HTML
3. Auto complete for all common Selenium commands
4. Debug and set breakpoints
5. Option to automatically assert the title of every page
6. Support for Selenium user-extensions.js file
Q7. What are the disadvantage of Selenium IDE tool?
Ans. 1. Selenium IDE tool can only be used in Mozilla Firefox browser.
2. It is not playing multiple windows when we record it.
Q8. What is Selenium RC (Remote Control)?
Ans. Selenium RC allows the test automation expert to use a programming language for maximum
flexibility and extensibility in developing test logic. For example, if the application under test returns
a result set and the automated test program needs to run tests on each element in the result set, the
iteration / loop support of programming language’s can be used to iterate through the result set,
calling Selenium commands to run tests on each item. Selenium RC provides an API and library for each of its supported languages. This ability to use
Selenium RC with a high level programming language to develop test cases also allows the automated
testing to be integrated with the project’s automated build environment.
Q9. What is Selenium Grid?
Ans. Selenium Grid in the selenium testing suit allows the Selenium RC solution to scale for test suites
that must be run in multiple environments. Selenium Grid can be used to run multiple instances of Selenium RC on various operating system and browser configurations
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