ISTQB Exam ISTQB-CTFL Topic 5 Question 19 Discussion

Actual exam question for ISTQB's ISTQB-CTFL exam

Question #: 19
Topic #: 5

Which or the following is a valid collection of equivalence classes for the following problem: An integer field shall contain values from and including 1 to and including 15.

ALess than 0.1 through 14. 15 and more

BLess than 1.1 through 14. more than 15

Cnegative numbers. 1 through 15. above 15

DLess than 1.1 through 15. more than 15

Show Suggested Answer

Suggested Answer: D

Equivalence partitioning is a black-box test design technique where inputs to the software or system are divided into groups that are expected to exhibit similar behavior. For an integer field that should accept values from 1 to 15, the valid equivalence class is 1 through 15. The invalid equivalence classes are numbers less than 1 and numbers more than 15. Therefore, option D, 'Less than 1, 1 through 15, more than 15,' correctly identifies the valid equivalence class along with the two invalid classes, covering all possible input scenarios for the field. Options A, B, and C either do not accurately capture the valid range or incorrectly specify the range boundaries.

by Barbra at May 01, 2024, 07:28 PM

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Alesia

5 days ago

Option C is the only one that makes sense.

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Alline

11 days ago

I thought equivalence classes should cover all ranges, but I'm confused about the upper limits in these options.

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Florinda

16 days ago

I practiced a similar question, and I feel like "less than 1.1" might be too broad. Maybe option D is the right choice?

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Sol

22 days ago

I think option C sounds familiar since it includes negative numbers, but I can't recall if that's valid for this problem.

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Chau

28 days ago

I remember we discussed equivalence classes in class, but I'm not sure if "less than 1.1" is correct for this range.

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Candida

28 days ago

I've got a good feeling about option D. It seems to capture the range of values from 1 to 15 in a clear and logical way. I'll go with that unless I spot something I'm missing.

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Adolph

29 days ago

Okay, let me think this through step-by-step. The question is asking for a valid collection of equivalence classes for the integer field from 1 to 15. I need to consider how to group the values in a meaningful way.

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Laurene

30 days ago

Hmm, I'm a bit unsure about this one. The wording is a bit tricky, and I want to make sure I understand the requirements correctly before selecting an answer.

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Rozella

1 months ago

This looks like a straightforward question about defining equivalence classes. I'll carefully read through the options and think about which one best captures the given range of integers from 1 to 15.

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Sean

1 months ago

I think I have a good handle on this. I'll start by exploring the Monitoring tab and Dashboard in the Administration console, as those seem like the most straightforward solutions for this type of monitoring task.

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Jenelle

1 months ago

Hmm, I'm a bit unsure about this one. The functions of the IFRS Advisory Council aren't something I've focused on too much in my studies. I'll have to think this through carefully.

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