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Unlike load testing, which ensures that a system can handle what it’s designed to handle, stress testing focuses on overloading the system until it breaks. A stress test determines how stable a system is and its ability to withstand extreme increases in load. It does this by testing the maximum number requests from another service (for example) that a system can handle at a given time before performance is compromised and fails. Find this maximum to understand what kind of load the current environment can adequately support.