ISTQB Certified Tester Foundation Level (CTFL v4.0) - ISTQB-CTFL Exam Questions [2026]

QUESTION NO: 1
A company wants to reward each of its salespeople with an annual bonus that represents the sum of all the bonuses accumulated for every single sale made by that salesperson. The bonus for a single sale can take on the following four values: 3%, 5%, 7% and 10% (the percentage refers to the amount of the single sale).
These values are determined on the basis of the type of customer (classified as "Basic" or "Premium") to which such sale was made, and on the amount of such sale classified into the following three groups G1, G2 and G3:
* [G1]: less than 300 euros
* [G2]: between 300 and 2000 euros
* [G3]: greater than 2000 euros
Which of the following is the minimum number of test cases needed to cover the full decision table associated with this scenario?

A. 12 B. 6 C. 3 D. 4

Correct Answer: B

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QUESTION NO: 2
Which of the following statements is LEAST likely to be describing component testing?

A. It identifies defects in modules and classes. B. It mainly tests interfaces and interaction between components. C. It may be applied using a test-first approach. D. Simulators and stubs may be required.

Correct Answer: B

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QUESTION NO: 3
Which ONE of the following options CANNOT be subjected to static analysis?

A. BPMN (Business Process Modeling and Notation) models B. Source code C. UML (Unified Modeling Language) models D. COTS (Commercial off-the-shelf)

Correct Answer: D

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QUESTION NO: 4
In what way do Configuration Management effects testing?

A. Proper configuration management ensures that testers can uniquely identity the tested item B. There is very little influence of configuration management practices on the test project. C. Without proper configuration management, test planning cannot proceed. D. Configuration management is important for developers, not for testers

Correct Answer: A

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QUESTION NO: 5
Which ONE of the following statements would you expect to be the MOST DIRECT advantage of the whole- team approach?

A. Having an automated build and test process, at least once a day, that detects integration errors early and quickly. B. Capitalizing on the combined skills of business representatives, testers, and developers working together to contribute to project success. C. Reducing the involvement of business representatives because of enhanced communication and collaboration between testers and developers. D. Avoiding requirements misunderstandings that may not have been detected until dynamic testing when they are more expensive to fix.

Correct Answer: B

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QUESTION NO: 6
Which ONE of the following options MOST ACCURATELY describes statement testing?

A. In statement testing, the coverage items are decisions and statements. The aim is to design test cases that exercise statements in the code until an acceptable level of coverage is achieved, expressed as a percentage. B. In statement testing, the coverage items are branches, and the aim is to design test cases to exercise branches in the code until an acceptable level of coverage is achieved, expressed as a percentage. C. In statement testing, the coverage items are executable statements. The aim is to design test cases that exercise statements in the code until an acceptable level of coverage is achieved, expressed as a percentage. D. In statement testing, the coverage items are control flow transfers between branches. The aim is to design test cases to exercise branches in the code until an acceptable level of coverage is achieved, expressed as a percentage.

Correct Answer: C

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QUESTION NO: 7
The following table shows six test cases TC01 to TC06 with their priorities and dependencies.

Schedule the test execution of the specified test case set according to the priorities and dependencies. Since the test time is very tight, the number of test cases should be minimized as much as possible, but all very important test cases must be included.
Which of the following statements is correct?

A. TC03, TC04 and TC05 can be deleted. B. TC05 and TC06 can be deleted. C. TC04 and TC05 can be deleted. D. TC04, TC05, and TC06 can be deleted.

Correct Answer: B

QUESTION NO: 8
Which statement corresponds to one of the 7 principles of testing?
Select exactly one option (1 out of 4)!

A. Fixing all detected defects ensures the success of the system under test. B. Late testing saves time and money, especially with scarce resources. C. To detect new defects, existing regression test cases must be updated regularly. D. Exhaustive testing can show the absence of defects.

Correct Answer: C

QUESTION NO: 9
Which of the following types of bugs are more likely to be found by static testing then by dynamic testing?

A. Variables that were declared in the code without initialization B. Functions that take much longer time to complete than expected C. A sub-system that does not perform the intended functionality D. Crashes of the application

Correct Answer: A

QUESTION NO: 10
From a testing perspective, configuration management

A. Allows the expected results to be compared with the actual results. B. Includes all activities that direct and control an organisation with regard to quality C. Focuses on configuring static analysis tools to choose the most suitable breadth and depth of analysis. D. Allows the tracking of all changes to versions of the testware.

Correct Answer: D

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QUESTION NO: 11
Which of the following is LEAST likely to describe a task performed by someone in a testing role?

A. Create test completion report B. Assess testability of test object C. Evaluate test basis and test object D. Define test environment requirements

Correct Answer: A

QUESTION NO: 12
Consider the following code
int premium=2500;
if (age<30)
{
premium = premium +1500:
}
Which options suits for a correct combination of Boundary value and expected result. Assume first number as boundary followed by expected result.

A. 30, 1500
31,2500 B. 29, 1500
30. 2500 C. 29, 2500
30. 1500 D. 29. 4000
30. 2500

Correct Answer: D

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QUESTION NO: 13
Calculate the measurement error SD for the following estimates done using three point estimation technique- Most optimistic effort (a) -120 person days Most likely effort (m) -180 person days Most pessimistic effort (b)
- 240 person days

A. 180 B. 20 C. 197 D. 120

Correct Answer: B

QUESTION NO: 14
Which of the following BEST matches the descriptions with the different categories of test techniques?
1.Test cases are based on the test basis which may include the requirements, use cases and user stories
2.Test cases are based on the test basis which may include the software architecture or code
3.Test cases can show deviations from the requirements
4.These test techniques are applicable to both functional and non-functional testing
5.Tests are based on knowledge of developers, users and other stakeholders Black - Black-box test techniques White * White-box test techniques Experience - Experience-based test techniques

A. Black -1,2 White - 3, 4 Experience - 5 B. Black - 2, 3 White -1,5 Experience - 4 C. Black - 2, 3 White -1 Experience - 4, 5 D. Black -1,3.4 White - 2 Experience - 5

Correct Answer: D

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