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iSQI CT-AI Exam - Topic 3 Question 39 Discussion

A neural network has been designed and created to assist day-traders improve efficiency when buying and selling commodities in a rapidly changing market. Suppose the test team executes a test on the neural network where each neuron is examined. For this network, the shortest path indicates a "buy" and it will only occur when the one-day predicted value of the commodity is greater than the spot price by 0.75%. The neurons are stimulated by entering commodity prices and testers verify that they activate only when the future value exceeds the spot price by at least 0.75%.Which of the following statements BEST explains the type of coverage being tested on the neural network?
A) Threshold coverage
B) Neuron coverage
C) Sign-change coverage
D) Value-change coverage

iSQI CT-AI Exam - Topic 3 Question 39 Discussion

Actual exam question for iSQI's CT-AI exam
Question #: 39
Topic #: 3
[All CT-AI Questions]

A neural network has been designed and created to assist day-traders improve efficiency when buying and selling commodities in a rapidly changing market. Suppose the test team executes a test on the neural network where each neuron is examined. For this network, the shortest path indicates a "buy" and it will only occur when the one-day predicted value of the commodity is greater than the spot price by 0.75%. The neurons are stimulated by entering commodity prices and testers verify that they activate only when the future value exceeds the spot price by at least 0.75%.

Which of the following statements BEST explains the type of coverage being tested on the neural network?

Show Suggested Answer Hide Answer
Suggested Answer: A

The syllabus details that threshold coverage requires each neuron to achieve an activation value greater than a specified threshold:

'Threshold coverage: Full threshold coverage requires that each neuron in the neural network achieves an activation value greater than a specified threshold.'

(Reference: ISTQB CT-AI Syllabus v1.0, Section 6.2, page 48 of 99)


by Jose at May 28, 2026, 02:59 PM

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Antione
2 days ago
I lean towards B) Neuron coverage. It's about how each neuron responds.
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Ettie
7 days ago
Agreed, Jules. The network only activates above that threshold.
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Jules
12 days ago
I think it's A) Threshold coverage. It fits the 0.75% requirement.
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Ma
17 days ago
Not so sure about that, could be value-change coverage too.
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German
22 days ago
Definitely threshold coverage, that 0.75% is key!
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Reita
27 days ago
Wait, how can we be sure it works as intended?
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Refugia
1 month ago
I think it's more about neuron coverage.
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Fernanda
1 month ago
Sounds like threshold coverage to me!
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Frankie
1 month ago
I’m leaning towards threshold coverage too, but I’m a bit confused about how it differs from sign-change coverage. They both seem similar in context.
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Maile
2 months ago
I practiced a question like this, and I feel like value-change coverage could be relevant since it deals with how values affect neuron activation.
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Dorothea
2 months ago
I'm not entirely sure, but neuron coverage sounds familiar. I remember it being about testing individual neurons, right?
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Shantay
2 months ago
I think this might be related to threshold coverage since it mentions a specific percentage difference for activation.
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