Free CTFL sample questions

Real questions from the ISTQB Certified Tester Foundation Level practice bank, with the correct answer and an explanation for each one. No junk, no filler.

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Showing 10 of 20 free sample questions.

Question 1Choose one

During a project to develop a safety-critical avionics system, the requirements specification is scheduled for a formal inspection. Which of the following is a key characteristic that distinguishes an inspection from other review types like a walkthrough or an informal review?

Question 2Choose one

A project manager is concerned about the high cost of test environment setup and maintenance. Adopting a new test automation framework is being considered. Which of the following represents the MOST significant potential risk of introducing test automation that the manager must consider?

Question 3Choose one

A system for controlling a medical infusion pump has passed 100% of its requirement-based tests. However, a safety audit reveals that a specific, complex combination of user inputs, not specified in the requirements, can lead to a dangerous overdose. This scenario best illustrates which testing principle?

Question 4Choose one

A project is behind schedule, and management is pressuring the test team to sign off on a release. The test manager's dashboard shows that while 95% of planned test cases have been executed, the test coverage on the highest-risk modules is only at 60%. Several high-severity defects remain open. Which of the following is the MOST appropriate action for the test manager to take?

Question 5Choose 3

A test analyst is writing a defect report for a crash that occurs when uploading a file. To ensure the developers can reproduce and fix the issue efficiently, which THREE of the following items are MOST essential to include in the defect report? (Select THREE).

Question 6Choose one

A developer runs a static analysis tool (linter) on their source code before committing it to the repository. The tool reports a potential null pointer exception on a rarely used code path. This activity is an example of:

Question 7Choose one

True or False: The primary purpose of confirmation testing (re-testing) is to ensure that a bug fix has not introduced new defects in other areas of the application.

Question 8Choose one

A project is developing a customer relationship management (CRM) system. The lead tester is creating the master test plan. Which of the following is an example of a PRODUCT risk, as opposed to a project risk?

Question 9Choose one

During test analysis for an e-commerce application, a tester breaks down the requirement 'A user can pay with a valid credit card' into several specific, verifiable items such as 'Verify payment with a valid Visa card', 'Verify payment with a valid Mastercard', and 'Verify payment fails with an expired card'. What are these verifiable items called?

Question 10Choose one

A software tester is assigned to a project late in the development lifecycle, just before the system testing phase. They notice the requirements are vague and there is very little documentation. Which test technique would be MOST effective in this situation to quickly gain an understanding of the application and identify potential defects?

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