Software QA Testing Question:

1. Testing conducted to evaluate a system or component at or beyond the limits of its specified requirements.

2. Stress testing is testing that investigates the behavior of software (and hardware) under extraordinary operating conditions. For example, when a web server is stress tested, testing aims to find out how many users can be on-line, at the same time, without crashing the server. Stress testing tests the stability of a given system or entity. It tests something beyond its normal operational capacity, in order to observe any negative results. For example, a web server is stress tested, using scripts, bots, and various denial of service tools.