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Testing & Quality Assurance Interview

Testing Fundamentals Question(s) & Actual Evaluation

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* Please note that the following answer(s) are just sample answers from one of our candidates. It doesn't mean that it's the correct or wrong answer.
Please refer to the evaluation for more insight.


  • Classification: Testing & Quality Assurance
  • Topic(s): Testing Fundamentals
Interview Question:

Can you explain the difference between a bug and a defect in software testing?

Candidate's Answer:

A bug is an error and defect is a deviation from the expected requirement.

AI Evaluation:

Your answer is correct and provides a good distinction between a bug and a defect in software testing. However, to improve your answer, you could add some additional information and examples to make it more comprehensive and clear.

A bug is a flaw or mistake in the code that causes unexpected behavior or produces incorrect results. It is often caused by a coding error or a mistake in the program logic. For example, if a login page is designed to accept only alphanumeric characters in the password field, but it accepts special characters, it would be considered a bug.

On the other hand, a defect is a deviation from the expected requirement or functionality. It is a broader term that includes not only coding errors but also any issues in design, usability, or functionality. Defects can occur due to incorrect or incomplete requirements, misunderstood specifications, or human error. For instance, if the login page does not have a "forgot password" option, it would be considered a defect.

In summary, a bug is a specific coding error, while a defect is a broader term encompassing any deviation from the expected behavior or requirement.

To improve your answer, you could also mention the impact of bugs and defects on the software development process. Bugs can lead to system crashes, data loss, or other critical errors, while defects may affect the overall quality and usability of the software. This highlights the importance of detecting and fixing bugs and defects in the early stages of software development.

Overall, your answer is clear and accurate, providing a good understanding of the difference between a bug and a defect in software testing. I would rate your answer 4/5. To make it a 5/5, you could provide more specific examples and expand on the impact of bugs and defects in software testing.