A static analysis tool reports an 'incorrect use' anomaly for a variable `count` in the following code: `count = 5; if (count > 10) { ... }`. What does this report likely indicate?

The variable `count` has a type mismatch

The use of `count` in the condition is not reachable from the definition because the value is always 5

The variable `count` is defined but never used

The variable `count` is used before it is defined

How do tools support data flow analysis?

By replacing the need for testing

By executing the code and fixing errors automatically

By analyzing code and reporting potential data flow anomalies

By automatically generating test cases without any human input

A test team is evaluating a static data flow analysis tool. The tool provides a report that lists 'def-use pairs' and flags those that are not covered by existing tests. How can the team best use this information to improve test coverage?

Create additional test cases that exercise the uncovered def-use pairs

Ignore the report because static analysis cannot be used for test design

Remove the uncovered def-use pairs from the code

Run the tool in dynamic mode to get more accurate results

What is a key characteristic of dynamic data flow analysis?

It is always faster than static analysis

It requires the code to be executed with test inputs

It only works on compiled code, not source code

It analyzes code without executing it

Certified Tester Advanced Level Technical Test Analyst

Domain 3Objective 3

Data Flow Analysis CTAL-TTA Practice Questions (Page 6)

Part of the Domain 3: Static and Dynamic Analysis domain, which makes up ~21% of our current practice bank. ISTQB does not publish an official question count, but from its 120-minute exam (~50–80 total, ~11–17 in this domain), expect 1–2 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

10concepts

Questions 26–30

26application · medium
A test analyst is reviewing a function with the following code: `if (flag) { x = 1; } else { x = 2; } y = x + 1;`. How many def-use pairs exist for variable `x`?
Select an answer first
27application · medium
A static analysis tool reports an 'incorrect use' anomaly for a variable `count` in the following code: `count = 5; if (count > 10) { ... }`. What does this report likely indicate?
Select an answer first
28foundation · easy
How do tools support data flow analysis?
Select an answer first
29application · medium
A test team is evaluating a static data flow analysis tool. The tool provides a report that lists 'def-use pairs' and flags those that are not covered by existing tests. How can the team best use this information to improve test coverage?
Select an answer first
30foundation · easy
What is a key characteristic of dynamic data flow analysis?
Select an answer first

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