What is Fault Tolerance?

Subh Singh
Invent the Future
Fault Tolerance is a feature that keeps the application or website running continuously. If the server running the application or website crashes or fails, the application or website continues running. Example:

A hospital website has one main server and one backup server. If the main server crashes, the backup server automatically starts running the website. Because of this, the hospital website continues running without interruption. It is called Fault Tolerance.