ISTQB CTAL-TTA Exam - Topic 1 Question 3 Discussion

Actual exam question for ISTQB's CTAL-TTA exam

Question #: 3
Topic #: 1

Consider the code fragment provided below:

How many test cases are needed for the code fragment lines 26 - 37 to achieve 100% modified condition/decision coverage?

A2 test cases

B4 test cases

C6 test cases

D8 test cases

Show Suggested Answer

Suggested Answer: B

Modified condition/decision coverage (MC/DC) requires each condition in a decision to be shown to independently affect the decision's outcome. For the code fragment provided, we have three independent conditions that need to be evaluated both as true and false. The minimum number of test cases needed to satisfy MC/DC for three conditions is four, which would allow each condition to be shown to independently affect the outcome of the decision.

by Markus at Mar 07, 2024, 06:54 AM

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Kami

3 months ago

8 test cases might be overkill, but better safe than sorry!

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Oliva

3 months ago

I counted 6 test cases, not sure where the 4 comes from.

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Lavina

3 months ago

Wait, are we sure about that? Seems like it could be more.

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Willow

4 months ago

Definitely agree, 4 seems right!

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Annelle

4 months ago

I think it’s 4 test cases for full coverage.

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Paola

4 months ago

I’m leaning towards 8 test cases, but I need to double-check how many conditions are actually being tested in those lines.

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Lyla

4 months ago

I feel like 6 test cases might be too many, but I can't recall the exact logic for modified condition/decision coverage.

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Cherry

4 months ago

I remember a similar question where we had to cover all branches, and I think it was around 4 test cases.

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Lili

5 months ago

I think we need to consider both conditions and decisions separately, but I'm not sure how many unique paths there are.

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Yvette

5 months ago

This seems straightforward. I think I can get 100% modified condition/decision coverage with just 2 test cases. I'll double-check my work, but I'm feeling good about this one.

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Rusty

5 months ago

Okay, I've got a strategy. I'll start by identifying the decision points in the code and then work through the different combinations of conditions to ensure I cover all the possible outcomes.

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Louann

5 months ago

Hmm, I'm a bit confused by the concept of modified condition/decision coverage. I'll need to review my notes on that before I can confidently approach this question.

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Jackie

5 months ago

This looks like a tricky one. I'll need to carefully analyze the code and think through all the possible conditions to determine the minimum number of test cases.

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Emile

5 months ago

I'm not sure I fully understand the question. Maybe I should ask the instructor for some clarification before attempting to solve this.

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Pamela

5 months ago

Dynamic dashboards can be powerful, but they do require more planning and configuration. I'll make sure to consider the maintenance and user experience factors.

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