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ISTQB CTFL-Foundation Exam Questions
- Topic 1: What is Testing: For test managers, quality assurance professionals, and software testers, this section of the exam covers how to identify typical testing objectives and differentiate testing from debugging.
- Topic 2: Why is Testing Necessary: For software developers, project managers, and quality analysts, this part of the exam covers examples of why testing is necessary, describes the relationship between testing and quality assurance, and gives examples of how testing contributes to higher quality.
- Topic 3: Seven Testing Principles: This domain of the exam covers explaining the seven testing principles for all IT professionals involved in software development and testing.
- Topic 4: Test Process: For test leads, software engineers, and quality control specialists, this section of the exam covers explains the impact of context on the test process. describe the test activities and respective tasks within the test process, and differentiate the work products that support the test process.
- Topic 5: The Psychology of Testing: For team leaders, human resource professionals in IT, and software development managers, this part of the exam covers, identify the psychological factors that influence the success of testing, explains the difference between the mindset required for test activities and the mindset required for development activities.
Free ISTQB CTFL-Foundation Exam Actual Questions
Note: Premium Questions for CTFL-Foundation were last updated On Feb. 22, 2026 (see below)
A garden irrigation system allows the user to specify 2 inputs:
1. Frequency - The number of times the system should be automatically switched on per day; minimum once per day, maximum 5 times
2. Duration - The duration of operation, in whole minutes, each time it is switched on; ranging from 1 to 60
Applying 2-value boundary value analysis Which option best options has the correct test set of valid and invalid boundary values?
Boundary value analysis involves testing at the boundaries between partitions. For the Frequency input, valid boundaries are 1 and 5, while invalid boundaries are 0 and 6. For the Duration input, valid boundaries are 1 and 60 minutes, while invalid boundaries are 0 and 61 minutes. Therefore, Option C includes the correct set of valid and invalid boundary values for both inputs.
When is testing complete?
Sometimes time/money does signify the end of testing, but it is really complete when everything that was set out in advance has been achieved.
Testing is considered complete when sufficient information has been gathered to assess the quality of the software and to make an informed decision about its release. This includes understanding the risks of any remaining defects, the test coverage achieved, and the test results. It is not practical to wait until all possible test cases have been executed or until no defects remain, as these conditions are often impossible to meet within typical project constraints.
Which of the following defects is most likely to be found by a test harness?
Variance from programming standards defects (option (A)) are found during the review or static testing process. Therefore a test harness is unlikely to find a defect in programming standards.
Memory leak defects (option (C)) could potentially be found by a test harness designed to run many test cases.
Regression defects (option (D)) could be found using many types of test tool.
Defects in middleware (option (B)) are generally more likely to be found by a test harness or a dynamic analysis tool than by any other type of tool.
''How much testing is enough?''
The amount of testing that is considered enough depends on various factors, including the level of risk associated with the application, industry standards, contractual obligations, and specific requirements. It is a risk-based decision that balances the need for thorough testing with time and resource constraints. Reference: ISTQB CTFL Syllabus V4.0, Section 5.2.2.
Which of the following statements best characterises maintenance testing? [K2]
Maintenance testing is conducted on the software after it has been delivered to address any issues or changes required due to defects, environment changes, or new requirements. The ISTQB syllabus explains that maintenance testing typically involves impact analysis to determine the extent of regression testing required, thus optimizing the testing effort and focusing on affected areas.
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