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ISTQB Exam CTAL-TTA Topic 6 Question 28 Discussion

Actual exam question for ISTQB's CTAL-TTA exam
Question #: 28
Topic #: 6
[All CTAL-TTA Questions]

Consider the following specification:

If you are flying with an economy ticket, there is a possibility that you may get upgraded to business class, especially if you hold a gold card in the airline's frequent flier program. If you don't hold a gold card, there is a possibility that you will get 'bumped' off the flight if it is full when you check in late.

This is shown in the control flow graph below. Note that each box (i.e., statement, decision) has been numbered.

Three tests have been run:

Test 1: Gold card holder who gets upgraded to business class

Test 2: Non-gold card holder who stays in economy

Test 3: A person who is bumped from the flight

What is the level of decision coverage achieved by these three tests?

Show Suggested Answer Hide Answer
Suggested Answer: C

Stress testing is the most appropriate method for identifying weak areas in code that may cause performance issues, especially under conditions of extreme load or stress. This type of testing deliberately pushes the system beyond its normal operational capacity to see how it behaves under stress, which can help reveal vulnerabilities in error recovery and transactional integrity that are not apparent under normal conditions. Stress testing can provide early insights into potential failure points and help prioritize areas for improvement before full-scale deployment.


Contribute your Thoughts:

Nikita
13 days ago
This question is a real turbulence, but I'm confident the answer is C) 75%. After all, I've got a frequent flyer card, and I'm always ready to get bumped for a free upgrade!
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Tonette
15 days ago
Ah, the joys of air travel! Bumped from a flight - that's a classic. As for the question, I'm going with D) 80%. Why? Because that's the number of flights I've been bumped from in the last year. Just kidding, I think the answer is C) 75%.
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Markus
24 days ago
Hold on, I'm just trying to wrap my head around this control flow graph. It looks like a choose-your-own-adventure book from the 80s! Anyway, I think B) 67% is the right answer.
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Rasheeda
29 days ago
Hmm, I'm not so sure about that. The question says there are 3 tests, but it doesn't specify if they cover all the possible outcomes of the decisions. I'm leaning towards D) 80%.
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Vivan
1 days ago
Test 1 covers gold card holder getting upgraded, Test 2 covers non-gold card holder staying in economy, Test 3 covers person getting bumped.
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Ceola
2 months ago
I think the answer is C) 75%. The control flow graph shows 4 decision points, and the 3 tests cover 3 of them, which gives 75% decision coverage.
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Keneth
15 days ago
Exactly, C) 75% is the most accurate based on the coverage achieved by the tests.
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Vesta
23 days ago
That makes sense, 75% decision coverage seems correct.
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Jenise
27 days ago
I agree, the answer is C) 75%.
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Shakira
1 months ago
Right, those percentages would be too low based on the information given.
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Tula
1 months ago
That makes sense, so it's not 60% or 67% then.
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Vesta
1 months ago
I agree, the answer is C) 75% because the 3 tests cover 3 out of 4 decision points.
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Ernie
2 months ago
I'm not sure, but I think it might be 75%.
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Delpha
2 months ago
I agree with Ming, the tests cover 67% of the decisions.
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Ming
2 months ago
I think the level of decision coverage achieved is 67%.
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