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ISTQB Exam ISTQB-CTFL Topic 5 Question 35 Discussion

Actual exam question for ISTQB's ISTQB-CTFL exam
Question #: 35
Topic #: 5
[All ISTQB-CTFL Questions]

A financial institution is to implement a system that calculates the interest rates paid on investment accounts based on the sum invested.

You are responsible for testing the system and decide to use equivalence partitioning and boundary value analysis to design test cases. The requirements describe the following expectations:

Investment range | Interest rate

R500 to RIO 000 10%

RIO 001 to R50 000 11%

R50 001 to RlOOOOO 12%

RIOOOOl to R500 000 | 13%

What is the minimum number of test cases required to cover all valid equivalence partitions for calculating the interest?

Show Suggested Answer Hide Answer
Suggested Answer: B

Using equivalence partitioning, the investment ranges are divided into four partitions:

R500 to R10,000 (10%)

R10,001 to R50,000 (11%)

R50,001 to R100,000 (12%)

R100,001 to R500,000 (13%)

Thus, the minimum number of test cases required to cover all valid equivalence partitions for calculating the interest is 4.


by Quentin at Oct 21, 2024, 04:47 PM

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Lynette
2 months ago
Haha, a million dollars? Sign me up! I'll take the 13% interest rate and retire early. Wait, did I just say the quiet part out loud?
upvoted 0 times
Edgar
15 days ago
User 4: Looks like we all have our eyes on that top tier interest rate!
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Lorean
16 days ago
User 3: I would definitely invest a million dollars for that 13% interest rate.
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Rosendo
20 days ago
User 2: I know right! Who wouldn't want to retire early with that kind of return?
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Bronwyn
1 months ago
User 1: That 13% interest rate for investments over R100,000 sounds pretty tempting.
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Jeff
2 months ago
I'm feeling a bit too mathematical for my taste. Let's spice things up a bit! What if we test the system with a million dollars? That would be one way to live the high life, am I right?
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Deandrea
21 days ago
Let's save the million-dollar tests for when the system is fully functional within the specified ranges.
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Josephine
22 days ago
Testing with a million dollars would be fun, but we need to make sure the system can handle all valid equivalence partitions.
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Daniela
23 days ago
I agree, let's focus on testing within the defined boundaries to ensure the system works correctly.
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Brianne
1 months ago
That would definitely be living the high life! But let's stick to testing with the specified ranges for now.
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Quiana
3 months ago
Hold up, what about the edge cases? We should also test the minimum and maximum values for each range to ensure the system handles them correctly. That's an additional 8 test cases. So the total should be 12.
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Rocco
3 months ago
Alright, let's see. We have four different investment ranges, each with a different interest rate. To cover all valid equivalence partitions, we need to test the boundaries between each range. That's 4 test cases. Easy peasy!
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Donte
2 months ago
So, the minimum number of test cases required is 4.
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Cassie
2 months ago
That's right, each test case will cover the boundaries between the different investment ranges.
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Micheal
3 months ago
We only need 4 test cases to cover all valid equivalence partitions.
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Adolph
3 months ago
I agree with Sherell. We only need to test the boundaries of each partition to cover all valid cases.
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Sherell
3 months ago
I think the answer is A) 5.
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