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iSQI CT-AI Exam - Topic 1 Question 41 Discussion

Actual exam question for iSQI's CT-AI exam

Question #: 41
Topic #: 1

[All CT-AI Questions]

Which of the following is correct regarding the layers of a deep neural network?

AThere is only an input and output layer

BThere is at least one internal hidden layer

CThere must be a minimum of five total layers to be considered deep

DThe output layer is not connected with the other layers to maintain integrity

Show Suggested Answer

Suggested Answer: B

The syllabus clearly explains the structure of a deep neural network (DNN):

'A deep neural network comprises three types of layers. The input layer receives inputs... Between the input and output layers are hidden layers made up of artificial neurons, which are also known as nodes.'

(Reference: ISTQB CT-AI Syllabus v1.0, Section 6.1, page 45 of 99)

by Bonita at Jul 02, 2026, 01:57 AM

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Jess

13 hours ago

I think B is correct. Hidden layers are essential.

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Felton

6 days ago

Exactly! Hidden layers are what make it "deep."

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Barrie

11 days ago

I feel confident about B too. It’s fundamental to the structure.

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Leonie

16 days ago

B is the best choice. Hidden layers enable learning features.

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Simona

21 days ago

D is definitely wrong. Output layers connect to hidden layers.

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Denny

26 days ago

C is misleading. Not all deep networks have five layers.

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Lynelle

1 month ago

A is too simplistic. Deep networks need complexity.

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Roosevelt

1 month ago

Agreed! Without hidden layers, it’s not deep learning.

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Tora

1 month ago

I think B is the right answer. Hidden layers are essential.

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Kasandra

2 months ago

D sounds off, how can the output layer not connect?

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Dahlia

2 months ago

I agree, B is the way to go! Hidden layers are essential.

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Ernest

2 months ago

Wait, five layers to be "deep"? That seems a bit much!

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Rodolfo

2 months ago

A is totally wrong, deep networks need more than just input and output.

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Shannan

2 months ago

B is definitely correct, gotta have those hidden layers!

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Karl

2 months ago

I’m confused about option C; I thought there could be fewer than five layers and still be considered deep.

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Rosio

3 months ago

I feel like I’ve seen a question similar to this before, and it emphasized the importance of hidden layers.

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Apolonia

3 months ago

I'm not entirely sure, but I remember something about the definition of deep networks needing more than just input and output layers.

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Kris

3 months ago

I think option B is correct because deep neural networks usually have hidden layers, right?

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