Top 50 Testing Interview Questions and Answers for 2023

As a general rule, the more important a software system is, the more testing it will require. mission-critical systems require exhaustive testing in order to ensure that they perform as intended. However, even non-critical systems need some level of testing in order to ensure that they are functioning correctly.

There is no definitive answer to the question of how much testing is enough. It depends on the specific system and its importance. However, there are some guidelines that can help you determine an appropriate amount of testing for your system.

First, consider the risks associated with your system. What are the consequences of an error? If the consequences are minor, then you may not need to test as exhaustively. On the other hand, if the consequences are major, then you will need to do more extensive testing.

Second, consider the reliability of your system. How often does it need to work correctly? If the system only needs to work occasionally, then you may not need to test as exhaustively. On the other hand, if the system needs to be reliable all the time, then you will need to do more extensive testing.

Third, consider the cost of testing. Exhaustive testing can be expensive and time-consuming. If you are on a budget or have limited time, then you may not be able to do exhaustive testing. However, even non-exhaustive testing can be beneficial and is better than no testing at all.

Exhaustive testing is usually not possible or practical, and so testers must prioritize their work to focus on the most important risks. In general, it is more important to ensure that critical functionality works correctly than to test every possible permutation of input data. However, there may be situations where exhaustive testing is necessary, such as in life-critical systems where even a small error could have catastrophic consequences.

In any case, it is important to have a clear understanding of the risks involved in using the software, and to design a testing strategy that is appropriate to those risks. There is no substitute for careful thought and planning when it comes to testing.