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ISTQB-CTFL Exam - Topic 1 Question 7 Discussion

Actual exam question for ISTQB's ISTQB-CTFL exam
Question #: 7
Topic #: 1
[All ISTQB-CTFL Questions]

4 equivalence classes are given for integer values:

0 < x <100

100<= x <= 200

200 < x < 500

x >= 500

Which of the following options represent correct set of data for valid equivalence class partitions?

Show Suggested Answer Hide Answer
Suggested Answer: C

The correct set of data for valid equivalence class partitions should include one value from each equivalence class, and no value from outside the range. Option C satisfies this condition, as it has one value from each of the four equivalence classes (50, 100, 250, 500). Option A has two values from the same equivalence class (100 and 200), option B has values outside the range (0 and 0.99), and option D has two values from the same equivalence class (1000 and 500). Verified Reference:A Study Guide to the ISTQB Foundation Level 2018 Syllabus - Springer, page 35.


by Jaclyn at Sep 02, 2023, 01:18 PM

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Svetlana
3 months ago
Totally agree, option D is the best choice here!
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Jerilyn
3 months ago
Wait, can 1000 really be in an equivalence class?
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Asuncion
4 months ago
Option C looks good too, all values fit the classes.
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Michael
4 months ago
I think option D is correct!
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Shawnda
4 months ago
Option B has values outside the defined ranges.
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Hoa
4 months ago
I think option D looks good since it has values like 50 and 250, but I'm not confident about 1000 being valid for the last class.
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Wilford
4 months ago
I feel like option C might be tricky because it includes 0.50, which doesn't seem to fit any of the classes correctly.
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Alton
5 months ago
I think option B has some values that are outside the defined ranges, like 0. I practiced similar questions, and they usually focus on whole numbers.
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Katina
5 months ago
I remember that equivalence classes should only include values that fit within the specified ranges, but I'm not sure about the exact boundaries.
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Cletus
5 months ago
Okay, I think I've got it. Based on the class definitions, option B with 0-1.99, 100-200, 201-499, and 500+ looks like the only one that fully covers all the required ranges. I'll go with that one.
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Rosalia
5 months ago
I'm a bit confused by the third class, 200 < x < 500. Option B has 201-499, which seems to fit, but the other options don't seem to cover that range fully. And the fourth class of x >= 500 is only represented in options A and D.
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Katina
5 months ago
Okay, let me think this through step-by-step. The first class is 0 < x < 100, so option A with 50 and option C with 0-50 both seem valid. Then the second class is 100 <= x <= 200, so options A, B, and C all have valid values in that range.
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Jaclyn
5 months ago
Hmm, this looks like a tricky one. I'll need to carefully read through the equivalence class definitions and compare them to the options provided.
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Cristal
5 months ago
Okay, I've got a plan. First, I'll go to the VNET1 resource in the Azure portal, then navigate to the Diagnostic settings blade. From there, I can create a new setting to send logs and metrics to a Log Analytics workspace.
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Eliseo
5 months ago
The IP address is definitely the right answer here. ACLs on routers use IP addresses to filter and control traffic flows.
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Mammie
5 months ago
Hmm, this seems like a tricky one. I'll need to think carefully about the role of the vBond orchestrator and how it interacts with the other Viptela components.
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