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ISTQB CTFL-Foundation Exam - Topic 4 Question 50 Discussion

Posted by Delsie on Apr 10, 2026 at 10:13 PM

Which of the following are examples of iterative development models?

(i) V-model

(ii) Rapid Application Development model

(iii) Waterfall model

(iv) Agile development model

Suggested Answer: C

Iterative development models include the Rapid Application Development (RAD) model and Agile development model. The ISTQB CTFL syllabus v4.0 explains that these models involve repeated cycles of development activities, allowing for incremental improvements and adjustments based on feedback.


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21 comments · newest first
DA
Daryl 1 month ago
Definitely C! Waterfall is not iterative at all.
KR
Kristofer 1 month ago
I lean towards C too. Iteration is key in Agile.
JO
Josefa 1 month ago
No, V-model is more linear. It’s not iterative.
ER
Erin 2 months ago
I feel confused about the V-model. Is it iterative?
JA
James 2 months ago
Agreed! RAD and Agile focus on feedback loops.
HI
Hildegarde 2 months ago
I think it's C. RAD and Agile are iterative.
DO
Dominga 2 months ago
Exactly! C is the best choice for this question.
CA
Casie 2 months ago
Right, it’s more about validation than iteration.
YO
Yolando 2 months ago
Not really. V-model is more linear.
AM
Amina 3 months ago
But isn't the V-model also iterative in some ways?
DO
Dominga 3 months ago
Agreed! RAD and Agile focus on quick iterations.
CA
Casie 3 months ago
I think it's C. RAD and Agile are iterative.
TA
Tashia 3 months ago
Wait, are we sure about Rapid Application Development being iterative?
ER
Erick 3 months ago
Totally agree, it's (ii) and (iv)!
EL
Elizabeth 4 months ago
I thought Waterfall was the only one that wasn't iterative?
CR
Cristy 5 months ago
V-model isn't really iterative though.
LE
Lettie 5 months ago
Agile is definitely iterative!
DE
Desmond 6 months ago
I’m a bit confused; I thought the V-model had some iterative aspects too, but I can't recall clearly.
AL
Alonzo 6 months ago
The Waterfall model seems more linear to me, so I don't think it fits the iterative category.
JO
Jolene 6 months ago
I practiced a question similar to this, and I feel like Rapid Application Development is also iterative.
LI
Lilli 6 months ago
I think I remember that the Agile model is definitely iterative, but I'm not sure about the others.
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