Firstly let's know what is Selenium Grid, so Selenium greed allows easily to run multiple tests in parallel on multiple machines by cutting down the time required for test execution. Selenium Grid can be used to run multiple instances of Selenium RC on various operating systems and browser configurations.
Advantages of Selenium Greed:
It reduces a lot of batch execution time.
Selenium greed performs cross-browser testing.
It also performs multiple OS testing.
When a node is free, it automatically picks up the test case waiting in the execution queue.
If you want to make your career in testing then you must enrol in the following Selenium Training Course. Here is a video tutorial which you should watch to learn all the basic concepts of Selenium. .
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