Discuss ISTQB ATM Exam Topic 2 Question 55

Assume you have some data related to confirmation testing during system testing of a past project.

In that project 240 bug reports have been opened once, 80 were opened twice, 10 were opened three times and no bug reports have been opened more than three times.

You estimate that a bug report, which has failed its confirmation test, costs, on average, 3 personhours.

Which of the following statements correctly describe the value of these confirmatory testing activities based on cost of quality?

K3 2 credits

A300 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

B340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of external failure

C340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

D300 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of detection

Suggested Answer: C

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33 comments · newest first

Elouise 10 months ago

C seems off, should be internal failure but the hours don’t add up.

Shelton 11 months ago

Definitely not B, that’s external failure.

Antonette 11 months ago

Wait, how does that add up to 340 person-hours?

Gregoria 11 months ago

I think A is correct, sounds right to me!

Linn 11 months ago

240 + 80 + 10 = 330 bug reports total.

Annmarie 12 months ago

I’m a bit confused about the distinction between internal failure and detection costs; I thought both could apply here, but I lean towards option A for the person-hours calculation.

Luis 12 months ago

I practiced a similar question where we had to categorize costs, and I feel like internal failure costs are related to issues found before release, so maybe option C is correct?

Shawnee 12 months ago

I think the total should be 340 person-hours since we have to account for the repeated bug reports, but I can't recall if that falls under internal or external failure costs.

Carmen 1 year ago

I remember we discussed how to calculate the total person-hours based on the number of bug reports and their failure rates, but I'm not sure if I got the math right.

Torie 1 year ago

The key here is understanding the difference between internal and external failure costs. I think I have a good handle on that, so I'll work through the calculations and see if I can identify the correct statement.

Eveline 1 year ago

This seems straightforward enough. We just need to calculate the total cost and then determine which category it falls under. I'm feeling pretty confident about this one.

Lashon 1 year ago

I'm a bit confused by the different categories of costs - internal failure, external failure, and detection. I'll need to review my notes on the cost of quality framework to make sure I understand the differences.

Merilyn 1 year ago

Okay, let's see. We have the number of bug reports that failed confirmation testing, and the average cost per bug report. I think I can use that to calculate the total cost, but I'll need to figure out which category it belongs to.

Joseph 1 year ago

Hmm, this looks like a tricky one. I'll need to carefully go through the information provided and think through the cost of quality concepts.

Hortencia 1 year ago

I'm a bit confused by the wording of this question. Can the variables be loaded from a properties file, or do they need to be entered in the field itself? I want to make sure I understand the requirements before selecting an answer.

Dong 1 year ago

Three times? Jeez, someone must have really messed up on that project. I bet the project manager was pulling their hair out during the system testing phase. At least they're learning from their mistakes, right?

Jeannine 1 year ago

Ah, the old 'costs of detection' trick. Nice try, but I'm not falling for that one. 340 person-hours on confirmatory testing, and that's an internal failure cost. Gotta love these tricky questions!

Veda 1 year ago

↳ replying to Jeannine

Ah, the old 'costs of detection' trick. Nice try, but I'm not falling for that one. 340 person-hours on confirmatory testing, and that's an internal failure cost. Gotta love these tricky questions!

Skye 1 year ago

↳ replying to Jeannine

C) 340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

Alba 1 year ago

↳ replying to Jeannine

B) 340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

Fairy 1 year ago

Hold on, I'm trying to figure this out. If 340 person-hours were spent on confirmatory testing, and each failed test costs 3 person-hours on average, then that would make sense. But I'm not sure if it's external or internal failure. I better double-check my notes.

Leonie 1 year ago

↳ replying to Fairy

C) 340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

Rosendo 1 year ago

↳ replying to Fairy

B) 340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of external failure

Marylou 1 year ago

↳ replying to Fairy

A) 300 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

Glory 1 year ago

Okay, let's break this down. 240 bugs were opened once, 80 twice, and 10 three times. That's a total of 340 person-hours spent on confirmatory testing, and this cost belongs to the costs of internal failure. Good thing I didn't skip that part of the study guide!

Vilma 1 year ago

↳ replying to Glory

D) 300 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of detection

Laine 1 year ago

↳ replying to Glory

C) 340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

Sherrell 1 year ago

↳ replying to Glory

B) 340 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of external failure

Gail 1 year ago

↳ replying to Glory

A) 300 person-hours have been spent on the project during the system testing phase, because of the failed confirmation tests and this cost belongs to the costs of internal failure

Claudio 1 year ago

Hmm, let's see. The question is asking about the costs of confirmatory testing during system testing. Based on the information provided, I think option C is the correct answer.

Sheldon 1 year ago

But if 300 person-hours have been spent on the project due to failed confirmation tests, it should belong to internal failure costs.

Lawanda 1 year ago

I disagree, I believe the answer is C.

Sheldon 2 years ago

I think the correct answer is A.

ISTQB ATM Exam - Topic 2 Question 55 Discussion