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Software Testing Basics Interview Questions and Answers for Freshers and Experience Part-6

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software-testing37. What’s the difference between System testing and Acceptance testing?
Acceptance testing checks the system against the “Requirements.” It is similar to System testing in that the whole system is checked but the important difference is the change in focus:
System testing checks that the system that was specified has been delivered. Acceptance testing checks that the system will deliver what was requested. The customer should always do Acceptance testing and not the developer.
The customer knows what is required from the system to achieve value in the business and is the only person qualified to make that judgement. This testing is more about ensuring that the software is delivered as defined by the customer. It’s like getting a green light from the customer that the software meets expectations and is ready to be used.

38. Can you explain regression testing and confirmation testing?

Regression testing is used for regression defects. Regression defects are defects occur when the functionality which was once working normally has stopped working. This is probably because of changes made in the program or the environment. To uncover such kind of defect regression testing is conducted.

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