ISTQB CTAL-TTA Exam - Topic 5 Question 17 Discussion

Actual exam question for ISTQB's CTAL-TTA exam

Question #: 17
Topic #: 5

Consider the following control flow graph:

The control flow represents a software component of a car navigation system. Within the project the maximum cyclomatic complexity to be allowed is set at 5.

Which of the following statements is correct?

ANo defect needs to be reported since the cyclomatic complexity of the component is calculated at 3.

BNo defect needs to be reported since the cyclomatic complexity of the component is calculated at 4

CNo defect needs to be reported since the cyclomatic complexity of the component is calculated at 5.

DA defect needs to be reported since the cyclomatic complexity of the component is calculated at 6.

Show Suggested Answer

Suggested Answer: C

Static analysis is the best technique for identifying the root causes of issues in a legacy system where small functional enhancements take disproportionately long to implement. This technique involves examining the code without executing it to detect potential vulnerabilities, coding errors, and complexities. Static analysis can highlight problematic code segments and inefficient coding practices that may contribute to the increased time required for implementing changes, thereby assisting in addressing these systemic issues efficiently.

by Carylon at Jul 17, 2024, 02:36 PM

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Lorrine

4 months ago

I think we should double-check those calculations.

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Breana

4 months ago

Complexity of 4 means no defect too, right?

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Earleen

4 months ago

Wait, what if it was actually 6? That sounds off.

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Justa

4 months ago

I agree, 3 is below the max limit.

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Tasia

5 months ago

Cyclomatic complexity is 3, so no defect!

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Tamar

5 months ago

I’m not completely confident, but I thought if it’s exactly 5, it might still be acceptable, right?

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Jarod

5 months ago

I practiced similar questions, and I feel like if it’s calculated at 6, that definitely means a defect needs to be reported.

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Matthew

5 months ago

I’m a bit unsure, but I think if the complexity is below the maximum of 5, then no defect should be reported.

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Francesco

5 months ago

I remember we discussed cyclomatic complexity in class, and I think it’s about counting the number of linearly independent paths.

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Mireya

5 months ago

I've got it! The cyclomatic complexity is 5, not 6. So the correct answer is option C - no defect needs to be reported.

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Xuan

5 months ago

Wait, I'm a bit confused. I thought the maximum allowed cyclomatic complexity was 5, but the question says the component has a complexity of 6. I better double-check my work.

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Maryann

5 months ago

Okay, let me think this through step-by-step. I see 6 decision points, so the cyclomatic complexity should be 6. That means option D is the correct answer.

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Tatum

6 months ago

Hmm, this looks tricky. I'll need to carefully count the number of decision points in the control flow graph to determine the cyclomatic complexity.

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Joye

6 months ago

I'm leaning towards option A to restore the previous version. It seems the most direct way to roll back the app without having to go through a full uninstall/reinstall process.

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Amber

6 months ago

I'm not entirely sure about this one. I'll have to review the material on column visualizations and sorting again before I can decide on the best approach.

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Bette

6 months ago

Okay, let's think this through. Disconnecting the server is probably the quickest way to stop the immediate threat, but I'd also want to analyze the source and figure out how the attacker got in so we can prevent future incidents.

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Daniela

11 months ago

Okay, let me get this straight - the component is too complex, but they're saying it's not a defect? I think the car navigation system just wants to take a few wrong turns, that's all. D is the right choice.

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Casie

10 months ago

Yeah, the cyclomatic complexity is over the limit, so a defect should be reported.

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Vicki

10 months ago

I agree, D is the correct choice.

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Apolonia

11 months ago

But the maximum allowed cyclomatic complexity is 5, so D seems to be the right choice.

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Lynelle

11 months ago

Haha, who's the genius that thought a complexity of 5 was acceptable when the limit is 5? Way to push the boundaries there! Definitely going with D.

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Vincent

10 months ago

Definitely going with D on this one.

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Afton

10 months ago

Exactly, it's important to stick to the limits set for a reason.

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Vernice

10 months ago

Yeah, it's like they were asking for a defect to be reported.

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Erick

11 months ago

I agree, setting the limit at 5 and then having a complexity of 6 is definitely a mistake.

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Brendan

11 months ago

Hmm, I'm not sure why anyone would think this is not a defect. If the limit is 5 and the component's complexity is 6, that's just math, right? D is the only logical answer.

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Leota

11 months ago

Wait, so the maximum allowed cyclomatic complexity is 5, but the component's complexity is 6? Looks like a clear defect to me. Option D is the way to go here.

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Huey

11 months ago

I disagree, I believe the correct answer is A.

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Apolonia

12 months ago

I think the correct answer is D.

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