What is Selenium Grid? | How does it work? | When should you use Selenium Grid?

Selenium grid is a mechanism or a tool which provides the facility of parallel execution of WebDriver scripts on local and remote machines. It also provides the facility to run scripts on different browser versions, browser types and platforms.
So lets move inside the video to get the details.
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[@chandrasekhar5406]

very good info sir, thanks

[@1989peeyush]

Very nice explanation