In an Examination, a candidate will be awarded with the Grade "A" if he gets marks in the range of 18 to 25 out of 25. Identify the invalid Equivalence class.a)20b)17c)21d)24e)19
Question
In an Examination, a candidate will be awarded with the Grade "A" if he gets marks in the range of 18 to 25 out of 25. Identify the invalid Equivalence class.a)20b)17c)21d)24e)19
Solution
The concept of Equivalence Class Testing is based on partitioning. Here, the range of input values that are supposed to be handled the same way by the system under test are grouped into classes.
In this case, the valid equivalence class is the range of marks from 18 to 25, because these are the marks that will earn the candidate a Grade "A".
So, let's evaluate the options:
a) 20 - This is a valid equivalence class because it falls within the range of 18 to 25. b) 17 - This is an invalid equivalence class because it falls outside the range of 18 to 25. c) 21 - This is a valid equivalence class because it falls within the range of 18 to 25. d) 24 - This is a valid equivalence class because it falls within the range of 18
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