Discuss ISTQB ISTQB-CTFL Exam Topic 1 Question 7

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?

A50; 100; 200. 1000

B0. 1.99, 100.200,201.499, 500;

C0.50; 100; 150.200.350.500;

D50; 100; 250; 1000

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.

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16 comments · newest first

Svetlana 11 months ago

Totally agree, option D is the best choice here!

Jerilyn 11 months ago

Wait, can 1000 really be in an equivalence class?

Asuncion 11 months ago

Option C looks good too, all values fit the classes.

Michael 11 months ago

I think option D is correct!

Shawnda 12 months ago

Option B has values outside the defined ranges.

Hoa 12 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.

Wilford 12 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.

Alton 1 year 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.

Katina 1 year 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.

Cletus 1 year 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.

Rosalia 1 year 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.

Katina 1 year 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.

Jaclyn 1 year 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.

Cristal 1 year 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.

Eliseo 1 year ago

The IP address is definitely the right answer here. ACLs on routers use IP addresses to filter and control traffic flows.

Mammie 1 year 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.

ISTQB-CTFL Exam - Topic 1 Question 7 Discussion