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iSQI Exam CTFL_Syll2018 Topic 4 Question 94 Discussion

Actual exam question for iSQI's CTFL_Syll2018 exam
Question #: 94
Topic #: 4
[All CTFL_Syll2018 Questions]

A bank offers a savings account with various interest rates based on the current balance in the account. The balance ranges and respective interest rates are:

Using two-point boundary value analysis, which of the following sets of test Inputs provides the relatively highest level of boundary coverage?

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Suggested Answer: A

The correct answer is A, as it provides the highest level of boundary coverage using two-point boundary value analysis.Boundary value analysis is a black-box test technique that focuses on the boundaries of input and output partitions1.Two-point boundary value analysis is a variation of boundary value analysis that uses only two values for each boundary: one just below the boundary and one just above the boundary1. In this case, the boundaries are the balance ranges that correspond to different interest rates. Option A covers all four boundaries using two values for each boundary: $100.00 and $100.01 for the first boundary, $500.00 and $500.01 for the second boundary, $1,000.00 and $1,000.01 for the third boundary, and $5.00 as an invalid value below the lowest boundary. Option B covers only three boundaries using one value for each boundary: $100.00 for the first boundary, $500.00 for the second boundary, and $1,000.00 and $1,000.01 for the third boundary. Option C covers only two boundaries using three values for each boundary: $100.00, $100.01, and $100.02 for the first boundary, and $500.00 and $999.99 for the second boundary.Option D covers only two boundaries using one value for each boundary: $100.00 for the first boundary, and $1,000.01 for the third boundary, and $5.00 as an invalid value below the lowest boundary. Reference:1, Section 4.2.3


by Nida at Aug 23, 2024, 04:34 PM

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Salena
5 months ago
D seems like the way to go. Covering the exact boundaries should give you the best chance of catching any issues.
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Lavina
4 months ago
D is definitely the way to go for maximum boundary coverage in this scenario.
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Remona
4 months ago
I think D is the best choice too. It covers all the important boundary values.
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Harris
4 months ago
I agree, D seems like the most comprehensive option for boundary coverage.
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Eura
6 months ago
I agree with Lucia, option A seems to cover the most critical boundaries.
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Minna
6 months ago
Haha, I'd just put in $1,000.00 and see if the bank teller can figure out the right interest rate. That's the real boundary test!
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Lucia
6 months ago
But option A covers the lowest and highest balance ranges.
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Whitley
6 months ago
Option C looks good to me. It tests multiple values within each range, which should provide a higher level of coverage.
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Christa
5 months ago
Yes, option C seems to be the best choice for boundary coverage testing.
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Jackie
5 months ago
I agree, option C covers multiple values within each range for better coverage.
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Alpha
6 months ago
I disagree, I believe option C covers more boundaries.
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Lucia
6 months ago
I think option A provides the highest boundary coverage.
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Whitley
6 months ago
I think option B is the best choice. It covers the upper and lower boundaries of each interest rate range.
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Detra
5 months ago
Option A seems to have some missing boundary values, so it may not provide the highest level of coverage.
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Chuck
5 months ago
I think option D is not the best choice as it misses some boundary values.
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Azalee
5 months ago
I see your point, but I still think option B is the most comprehensive choice.
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Rosendo
5 months ago
But option C also covers all the boundary values, so it could be a good choice too.
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Dorian
6 months ago
I think option C might provide even better coverage with more test inputs.
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Harrison
6 months ago
I agree, option B covers all the boundary values effectively.
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Ernie
6 months ago
I agree, option B covers all the boundary values effectively.
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