Difference between “selenium server” and “selenium server standalone” jars

Question

Can anyone please explain the difference between \"selenium server\" and \"selenium server standalone\" jars and use of both.

Which one to prefer? When to use which

Answer 1

The Selenium Server is needed in order to run Remote Selenium WebDriver. Selenium 3.X is no longer capable of running Selenium RC directly, rather it does it through emulation and the WebDriverBackedSelenium interface.

see https://docs.seleniumhq.org/download/

So,if you use Selenium RC,the Seleniium Server is what you need.if you use Selenium 3.X and update,selenium-server-standalone is what you need.I have the same question and i find the answer.