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ISTQB CTAL-TTA Exam - Topic 2 Question 38 Discussion

Actual exam question for ISTQB's CTAL-TTA exam
Question #: 38
Topic #: 2
[All CTAL-TTA Questions]

Below is the pseudo-code for the Win program:

The bingo program contains a data flow anomaly. Which data flow anomaly can be found in this program?

Show Suggested Answer Hide Answer
Suggested Answer: B

The pseudo-code provided for the 'Win' program reads in variables A, B, C, and D. However, only variables A, B, and C are used in the conditional statements to determine if the output will be 'Win' or 'Loose'. Variable 'D' is never used after it is read, which is a classic example of a 'defined but not used' data flow anomaly. This means that while there is an instruction to read a value into variable 'D', there is no subsequent use of this variable in the program's logic or output.


by Titus at Jul 11, 2025, 09:41 PM

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Kayleigh
5 months ago
Wait, no comments at all? That's surprising!
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Mabel
5 months ago
I think it's more about variable 'D' being unused.
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Keva
5 months ago
Totally agree, that's a classic mistake!
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Garry
6 months ago
Variable 'A' is not assigned a value before using it.
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Merri
6 months ago
Hard-coded values are a big no-no, for sure.
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Cordelia
6 months ago
I recall a practice question where hard-coded values were mentioned. Maybe option D is relevant here, suggesting we should use variables instead of hard-coded results.
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Jacklyn
6 months ago
I feel like the lack of comments could be a problem, but I don't know if that's technically a data flow anomaly. It just seems like poor practice.
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Buddy
7 months ago
I'm not entirely sure, but I remember something about defined variables not being used. Could it be variable 'D' that's causing the anomaly?
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Lindsey
7 months ago
I think the issue might be with variable 'A' not being assigned a value before it's used. That seems like a common data flow problem we discussed.
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Raul
7 months ago
I think I've got it. The key is to identify the anomaly that matches the pseudo-code provided. Option B seems to be the best fit based on the information given.
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Fannie
7 months ago
I'm a bit confused by the options. I'll need to double-check the definition of each data flow anomaly to make sure I select the right one.
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Sharan
7 months ago
Okay, let's see. The pseudo-code doesn't seem to have any issues with variable assignment or usage. I'm leaning towards option B.
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Armanda
8 months ago
Hmm, the question is asking about a specific type of data flow anomaly. I'll need to review my notes on the different types to determine which one applies here.
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Edelmira
8 months ago
This looks like a tricky one. I'll need to carefully analyze the pseudo-code to identify any data flow anomalies.
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Elli
10 months ago
Haha, the program doesn't even have comments? No wonder it has a data flow anomaly. How are we supposed to understand what's going on?
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Oliva
10 months ago
I agree with Bettina. This is a classic example of a variable being used without being initialized, which can lead to unexpected behavior.
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Salome
9 months ago
Yes, using uninitialized variables can definitely cause unexpected behavior in a program.
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Virgilio
9 months ago
I agree, it's important to always initialize variables before using them to avoid any issues.
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Shala
10 months ago
I think option A is correct. Variable 'A' is not assigned a value before using it.
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Bettina
10 months ago
The correct answer is A. Variable 'A' is not assigned a value before using it, which is a data flow anomaly.
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Lorean
9 months ago
That makes sense, it's important to always assign values to variables before using them.
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Mozell
10 months ago
I think the correct answer is A. Variable 'A' is not assigned a value before using it.
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Chauncey
10 months ago
Because using hard-coded print results is not a good practice in programming.
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Mike
10 months ago
Why do you think it's option D?
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Chauncey
10 months ago
I disagree, I believe it's option D.
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Mike
10 months ago
I think the data flow anomaly is option A.
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