Why do production servers and test servers have to be similar?

 Testing is done to ensure no errors or bugs are present in the application for the end user. Development is usually done in the developers own laptop which requires the testers to test if the integration and other database import, if any, works well. To achieve this, the testing needs to be done in a similar environment that the end user uses.

A Test environment allows the tester to check how the code or a software application behaves in live. This will be the final step before the software is moved into production.

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