ISTQB Exam CTAL-TTA Topic 6 Question 28 Discussion

Actual exam question for ISTQB's CTAL-TTA exam

Question #: 28
Topic #: 6

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?

A60%

B67%

C75%

D80%

Show Suggested 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.

by Sheridan at Dec 05, 2024, 06:07 PM

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Nikita

21 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

23 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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Rikki

5 days ago

I agree with you, I also think the answer is C) 75%.

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1 months 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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Vallie

11 hours ago

Yeah, I agree. The tests seem to cover all scenarios, so D) 80% makes sense.

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Corinne

5 days ago

I think the tests cover all possible outcomes, so I would go with D) 80%.

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Vivan

9 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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2 months ago

I think the level of decision coverage achieved is 67%.

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