Candidate: Can I Explain this with an example.
Employer: Yes
Candidate: Once a guy went to a tea shop and ordered one cup of tea and when the tea came he saw a fly in his cup.
Now this is a BUG.
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Employer: Laughed and said my dear now you tell me what is a defect?
Candidate: Once a Guy went to a tea shop and ordered a tea and when a tea came he tasted and said there is less sugar in the tea.
Now this is a defect!
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Employer: Laughed Hahahaha Haaa and said Can You Elaborate what you want to say?
Candidate: Yes Sir!
You can manage to drink a cup of tea with less or more sugar but you can’t drink a cup of tea with a bug.
I.e.:
Product can’t be delivered with a Live Bug.
Quality of the Product can be compromised with a defect.