ISTQB CTAL-TTA Exam - Topic 6 Question 19 Discussion

Actual exam question for ISTQB's CTAL-TTA exam

Question #: 19
Topic #: 6

You are testing software that will be used in nuclear power plants. The particular piece of code you are testing has been classified as SIL 2. The following section of code falls under this classification:

If ((A > B) or (C > D)) and (E = F) then print A

Endif

Which of the following sets of test data would supply the minimum tests needed to achieve the "highly recommended" level of coverage?

ASet 1

BSet 3

CSet 5

DSet 2

Show Suggested Answer

Suggested Answer: A

In software testing, especially within contexts like nuclear power plants, achieving a 'highly recommended' level of coverage often requires strategic test case selection to verify all logical conditions are accurately assessed. For the condition 'If ((A > B) or (C > D)) and (E = F) then print A', the critical tests involve evaluating the boolean logic.

Test Case Analysis: Test Set 1 is selected because it should ideally include scenarios where:

Both conditions (A > B) and (C > D) are true, and (E = F) is true to ensure the print statement executes.

One of the conditions (A > B) or (C > D) is false while the other is true, combined with (E = F) being true, to test the OR logic.

Both conditions (A > B) and (C > D) are false with (E = F) being true, which should not trigger the print statement, testing the AND logic.

Condition where (E != F), irrespective of other conditions, to confirm that the print statement does not execute.

by Tom at Aug 26, 2024, 05:31 PM

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Dick

3 months ago

Set 1 seems too limited for SIL 2 standards.

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Ulysses

3 months ago

Totally agree with Carla on Set 3!

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Dahlia

3 months ago

Wait, how can we be sure Set 2 covers everything?

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Cassi

4 months ago

I think Set 5 might actually be better.

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Carla

4 months ago

Set 3 looks solid for coverage.

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Emerson

4 months ago

I think we practiced this kind of question before, and if I remember correctly, the minimum tests should focus on covering all branches. Set 1 seems like it could work, but I'm not entirely confident.

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Lavina

4 months ago

I feel like Set 2 could be a good option since it covers both conditions in the if statement, but I need to double-check the combinations.

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Rodrigo

4 months ago

This reminds me of a practice question where we had to evaluate similar logical expressions. I think Set 3 might be the right choice, but I can't recall the exact reasoning.

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Irene

5 months ago

I remember we discussed how to achieve high coverage with logical conditions, but I'm not sure which set of test data would be best for this specific case.

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Tamesha

5 months ago

No problem, I've got this. The key is to identify the minimum set of test cases that cover all the logical conditions in the code.

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Malcom

5 months ago

Okay, I think I've got a handle on this. I'll need to test the boundary conditions for A, B, C, D, and E=F to hit the "highly recommended" coverage.

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Carissa

5 months ago

Hmm, I'm a bit confused by the SIL 2 classification. I'll need to review the requirements for that level of safety integrity.

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Bong

5 months ago

This looks like a tricky one. I'll need to carefully think through the different test cases to make sure I cover all the conditions.

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Roxanne

5 months ago

Okay, let me break this down. I think the key is to focus on what a UX designer should and shouldn't do.

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Viola

5 months ago

Wasn't there a section about content filters in one of our labs? I wonder if D could be a possibility.

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Dorothy

1 year ago

Set 2 covers all the conditions in the code snippet, ensuring thorough testing.

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Xenia

1 year ago

Why do you think Set 2 is the correct answer?

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Dorothy

1 year ago

I disagree, I believe the answer is Set 2.

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Jamey

1 year ago

Hmm, wonder if the developers had a little too much caffeine when they wrote this code. Hope the testers are wide awake!

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Elza

1 year ago

B) Set 3

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Germaine

1 year ago

A) Set 1

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Xenia

2 years ago

I think the answer is Set 3.

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Myra

2 years ago

Set 2 seems like the best choice to cover the minimum tests. I mean, who wants to be responsible for a meltdown, right?

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Sophia

1 year ago

Sherman: Exactly, safety first when it comes to testing this kind of software.

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Sherman

1 year ago

Definitely, we can't take any chances with code that's used in nuclear power plants.

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Dominga

1 year ago

I agree, Set 2 looks like the safest option for testing.

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Levi

2 years ago

Looks like we need to test the edge cases for this SIL 2 code. Can't afford any mistakes in a nuclear power plant!

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Mickie

1 year ago

Let's make sure we test thoroughly before implementing this code.

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Holley

1 year ago

I think we should go with Set 3 for the tests, it covers the edge cases well.

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Alton

1 year ago

I agree, safety is the top priority when it comes to nuclear power plants.

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Casandra

1 year ago

We definitely need to cover all possible scenarios with this code.

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