ISTQB-CTFL Exam - Topic 2 Question 24 Discussion

Actual exam question for ISTQB's ISTQB-CTFL exam

Question #: 24
Topic #: 2

A system has a self-diagnostics module that starts executing after the system is reset. The diagnostics are running 12 different tests on the systems memory hardware. The following is one of the requirements set for the diagnostics module:

'The time taking the diagnostics tests to execute shall be less than 2 seconds' Which of the following is a failure related to the specified requirement?

AThe diagnostic tests fail to start after a system reset

BThe diagnostic tests take too much time to execute

CThe diagnostic tests that measure the speed of the memory, fail

DThe diagnostic tests fail due to incorrect implementation of the test code

Show Suggested Answer

Suggested Answer: B

To achieve 100% statement coverage, we need to design test cases that ensure every statement in the given pseudo-code is executed at least once. Analyzing the pseudo-code, we notice that there are conditions based on two variables: Gender and Age. To cover all statements, we need to consider the paths that lead to each assignment of the Shoe Size variable.

Gender = Boy, Age <= 3 (Shoe Size assignment is not reached, but the condition is evaluated)

Gender = Boy, Age > 3 AND Age < 5 (Shoe Size = 1)

Gender = Boy, Age >= 5 AND Age < 7 (Shoe Size = 2)

Gender != Boy, Age <= 3 (Again, Shoe Size assignment is not reached, but the condition is evaluated)

Gender != Boy, Age > 3 AND Age < 5 (Shoe Size = 0)

Gender != Boy, Age >= 5 AND Age < 7 (Shoe Size = 1)

However, upon closer inspection, we see that tests 1 and 4 do not contribute to statement coverage as they do not lead to a Shoe Size assignment. Therefore, we only need 4 test cases to achieve 100% statement coverage, making option B the correct answer.

by Justine at Jun 30, 2024, 09:21 AM

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Katy

3 months ago

D is just a coding error, not really a time issue.

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Arlean

3 months ago

Wait, how can they not finish in under 2 seconds? That seems off!

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Stephaine

3 months ago

C could be a problem too, but it doesn't directly relate to the time requirement.

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Hailey

4 months ago

I think A is a bigger issue, no tests means no results.

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Marg

4 months ago

B is definitely a failure, it says less than 2 seconds!

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Bettina

4 months ago

I recall that if the tests fail due to implementation issues, like in option D, it might not directly relate to the timing requirement, but it could still be a failure.

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Rutha

4 months ago

I think we had a practice question about test execution times, and it seems like option B aligns with that, but I'm a bit confused about the other options.

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Hillary

4 months ago

I'm not entirely sure, but I feel like if the tests don't start at all, like in option A, that could also be a significant failure.

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Gracia

5 months ago

I remember we discussed how timing is crucial for the diagnostics, so I think option B is definitely a failure related to the requirement.

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Claribel

5 months ago

Hmm, this is a tricky one. I'll need to really focus on the wording of the requirement and each of the answer choices to determine which one represents a failure to meet the time limit.

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Niesha

5 months ago

I've got this! The key is to identify the option that describes a failure to meet the 2-second requirement. I think option B is the correct answer, as it states that the diagnostic tests take too much time to execute.

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Ty

5 months ago

I'm a bit confused here. The requirement is about the time taken for the diagnostics tests, but some of the options don't seem directly related to that. I'll need to carefully analyze each choice.

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Claribel

5 months ago

Okay, let me think this through. The question is asking about a failure related to the specified requirement, so I need to identify which option describes a failure to meet the 2-second time limit.

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Willodean

5 months ago

Hmm, this seems straightforward. I'll need to focus on the requirement that the diagnostics tests must complete in less than 2 seconds.

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Harley

5 months ago

Okay, let me think this through. If the design has multiple replications, that means they repeated the experiment multiple times, right? That would give me a better sense of the variability and experimental error compared to just having multiple levels or factors.

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Willodean

5 months ago

I remember practicing a question like this, and I believe that the nominal value would be deducted from share capital, which seems more straightforward.

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Kallie

5 months ago

Hmm, this is a tricky one. I'll need to think carefully about the differences between these two patterns.

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Jonelle

10 months ago

A) The diagnostic tests fail to start after a system reset. If the tests don't even start, they can't possibly meet the time requirement.

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Denny

10 months ago

C) The diagnostic tests that measure the speed of the memory, fail. If the memory speed tests fail, it could cause the entire diagnostic process to take too long.

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Sylvia

8 months ago

A: D) The diagnostic tests fail due to incorrect implementation of the test code

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Cherelle

8 months ago

B: C) The diagnostic tests that measure the speed of the memory, fail

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Luisa

8 months ago

A: B) The diagnostic tests take too much time to execute

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Gail

10 months ago

I bet the developers who wrote that requirement were just trying to see who could write the fastest diagnostics. Gotta love those speed demons!

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Krissy

9 months ago

C) The diagnostic tests that measure the speed of the memory, fail

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Teddy

9 months ago

B) The diagnostic tests take too much time to execute

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Dominque

9 months ago

A) The diagnostic tests fail to start after a system reset

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Miles

10 months ago

D) The diagnostic tests fail due to incorrect implementation of the test code. If the tests are not implemented correctly, they may not meet the specified requirement.

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Polly

9 months ago

A) The diagnostic tests fail to start after a system reset

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Jacquelyne

9 months ago

C) The diagnostic tests that measure the speed of the memory, fail

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Ezekiel

10 months ago

B) The diagnostic tests take too much time to execute

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Eloisa

10 months ago

But what if the tests don't even start after a system reset? Wouldn't that also be a failure?

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Tyisha

10 months ago

I agree with Stephaine, if the tests take more than 2 seconds, it would be a failure.

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Theodora

11 months ago

B) The diagnostic tests take too much time to execute. This is clearly a failure related to the specified requirement of the tests taking less than 2 seconds to execute.

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