ISTQB_De_5_Cau_185-231
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Câu 1. he temperature controller receives the temperature in full degrees Celsius (°C) as input. For 0 degrees, it returns the message ‘zero temperature’. For positive temperatures, it returns the message ‘positive temperature’. For negative temperatures, it returns the message ‘negative temperature’.You use a 3-value boundary value analysis to test the controller's behavior.Which test data set achieves the HIGHEST coverage?
- A. -1°С, 0°С, 1°С, 3°C
- B. 0°С, 1°С, 2°С, 3°С
- C. 2°С, -1 °С, 1°С, 2°С
- D. -3°С, 0°С, 1°С, 2°С
Câu 2. You test a system that grants a driving license. You design test cases based on the following minimized decision table. You have already designed three following test cases: • 18 years old, passed both vision and driving tests; expected result: grant a license • 17 years old, passed vision test, failed driving test; expected result: do not grant a license • 19 years old, failed both vision and driving tests; expected result: do not grant a license Which test case needs to be added to this set to achieve full decision table coverage?
- A. No test case is needed; the existing test cases already achieve the required coverage
- B. 17 years old, passed both vision and driving test; expected result: grant a license
- C. 18 years old, passed vision test, failed driving test; expected result: do not grant a license
- D. 20 years old failed vision test passed driving test-expected result: do not grant a license
Câu 3. You work on a project where the executed test set achieved 100% statement coverage.What is the consequence of this fact?
- A. Each executable statement with a defect had to be exercised at least once
- B. The test set triggered no failures in the tested code
- C. All requirements related to the code under test are met
- D. Each decision outcome in the code had to be evaluated both for true and false
Câu 4. If:• EC = number of exercised conditional branches in a code• EU = number of exercised unconditional branches in a code• С = number of conditional branches in a code• U = number of unconditional branches in a codeWhich metric correctly defines the branch coverage?
- A. ЕС/С + EU/U
- B. (EC+EU) / (C+U)
- C. EC/С
- D. EC + EU
Câu 5. What is error guessing?
- A. A test technique in which the tester anticipates the mistakes the developer might make, defects they might introduce, and failures that may occur due to these defects
- B. A test technique in which a tester designs, implements, and executes tests to cover test conditions from a checklist built based on knowledge about how software fails
- C. A test estimation technique in which testers use their knowledge and experience to estimate the effort needed to fix problems in the test process due to testers’ mistakes
- D. A type of software testing that identifies vulnerabilities, threats, and risks in a system to ensure its resources are protected from unauthorized access and malicious attacks
Câu 6. Which of the following is TRUE about exploratory testing?
- A. It is more effective when a tester is less experienced and has no domain knowledge
- B. It uses test results to learn more about the test object and create more focused tests
- C. It allows the use of experience-based test techniques but not black-box test techniques
- D. It focuses not only on defect detection but also on defect avoidance through collaboration
Câu 7. Consider the following two versions of acceptance criteria for a user story: “As a registered user, I want to be able to change my user’s name to update my personal data” What is the format of the acceptance criteria in these variants?
- A. Both variants use a scenario-oriented format
- B. Both variants use a rule-oriented format
- C. Variant 1 is rule-oriented; Variant 2 is scenario-oriented
- D. Variant 1 is scenario-oriented; Variant 2 is rule-oriented
Câu 8. Which TWO are the examples of entry criteria for system testing of a food order app? (Choose two.)
- A. All functional tests for the payment process are automated
- B. A test basis describing the business rules for discounts is available
- C. All smoke tests of the registering and logging features passed
- D. The appropriate functional tests cover all use cases
- E. There are no critical and at most 3 major defects unresolved
Câu 9. Your team is developing a new functionality for an employee management system, a Simple Reporting feature. The team is tasked with estimating the test effort required to test this feature.The team used the standard three-point estimation method to provide the predicted effort.The team came up with the following estimates:• in the optimistic scenario, the testing can be done in 1 hour• in the most likely scenario, the testing can be done in 2 hours• in the worst-case scenario, the testing can be done in 9 hoursWhat is the team's final estimation of the test effort?
- A. 4 hours
- B. 2 hours
- C. 3 hours
- D. 6 hours
Câu 10. You prioritize test cases using the additional coverage prioritization technique, using the requirements coverage as a coverage measure. All four test cases must be executed. The coverage achieved by your test cases is shown in the table below. Which test case should be executed LAST?
- A. TC1
- B. TC2
- C. TC3
- D. TC4
Câu 11. In the testing quadrants model, which testing is business-facing and supports the team?
- A. Security testing
- B. Component testing
- C. API testing
- D. Exploratory testing
Câu 12. What does the risk level depend on?
- A. Risk impact and risk likelihood
- B. Risk likelihood and risk priority
- C. Risk impact and risk severity
- D. Risk priority and risk severity
Câu 13. Categorize these risks into project risks and product risks.(i) Unforeseen technical difficulties, such as integrating with third-party APIs for payment or delivery tracking, could slow down progress(ii) Sensitive customer information, such as payment details and addresses, may be exposed due to insufficient security measures(iii) Uncontrolled additional feature requests or unclear requirements may lead to delays and budget overruns(iv) Limited availability of skilled developers, testers, or designers could hinder the timely delivery of the product(v) Confusing navigation may lead to user diss...
- A. (i), (ii), and (iv) are product risks; (iii) and (v) are project risks
- B. (ii) and (v) are product risks; (i), (iii), and (iv) are project risks
- C. (iii) and (v) are product risks; (i), (ii), and (iv) are project risks
- D. (iii) and (iv) are product risks; (i), (ii) and (v) are project risks
Câu 14. Which type of report will MOST LIKELY contain information about testing planned for the next period?
- A. Test progress report
- B. Defect report
- C. Test completion report
- D. Risk register
Câu 15. The customer reported the software failure in the form of a defect report, providing the version number of the software they use. Based on this information, the team identified the files used to build this version and the elements of the environment in which this version was created. This made it possible to identify and fix the defect quickly.What process enabled the above actions?
- A. Defect management
- B. Configuration management
- C. Test automation
- D. Test estimation
Câu 16. You prepared the following defect report.Defect ID: DR-00123 Date: 2025-01-12Title: “Order Confirmation” button not responsive after adding items to the cartSeverity: High Priority: Critical Reported By: John DoeSteps to reproduce:1. Launch the app and log in.2. Browse the menu and add items to the cart.3. Navigate to the cart and tap the “Order Confirmation” button.Expected result: The “Order Confirmation” button should process the order and navigate to the confirmation screen.Actual result: The “Order Confirmation” button is unresponsive, and no action is taken.Attachments: Screenshot: [orde...
- A. Add expected results after each step in the “steps to reproduce” section
- B. Add environment data and link to the test case that caused the failure
- C. Reduce severity and priority levels
- D. Add a suggestion how a source code could he chanced to fix the underlying defect
Câu 17. Which tools support delivery pipelines, automated build processes, and practices such as Continuous Integration/Continuous Delivery?
- A. Collaboration tools
- B. Test design and test implementation tools
- C. Test management tools
- D. DevOps tools
Câu 18. Which of the following BEST illustrates the benefit of using test coverage tools?
- A. Ease of configuration management
- B. More objective assessment
- C. Better defect prevention
- D. Dependency on tool vendor
Câu 19. Which of the following statements about how different types of test tools support testers is true?
- A. The support offered by a test data preparation tool is often leveraged by testers to run automated regression test suites.
- B. The support offered by a performance testing tool is often leveraged by testers to run load tests.
- C. The support offered by a bug prediction tool is often used by testers to track the bugs they found
- D. The support offered by a continuous integration tool is often leveraged by testers to automatically generate test cases from a model.
Câu 20. Following a risk-based testing approach you have designed 10 tests to cover a product risk with a high-risk level. You want to estimate, adopting the three-point test estimation technique, the test effort required to reduce the risk level to zero by executing those 10 tests. You made the following three initial estimates:most optimistic = 6 person hours.most likely = 30 person hours.most pessimistic = 54 person hours.Based only on the given information, which of the following answers about the three-point test estimation technique applied to this problem is true?
- A. The final estimate is between 22 person hours and 38 person hours
- B. The final estimate is exactly 30 person hours because the technique uses the initial most likely estimate as the final estimate
- C. The final estimate is between 6 person hours and 54 person hours
- D. The final estimate is exactly 30 person hours because the technique uses the arithmetic mean of the three initial estimates as the final estimate
Câu 21. The whole-team approach:
- A. promotes the idea that all team members should have a thorough understanding of test techniques.
- B. is a consensus-based approach that involves the whole team in estimating user stories.
- C. promotes the idea that all team members should be responsible for the quality of the product.
- D. is mostly adopted in projects aimed at developing safety-critical systems, as it ensures the highest level of test independence
Câu 22. Which of the following statements is true?
- A. A defect does not always produce a failure, while a bug always produces a failure.
- B. A defect may cause a failure which, when occurring, always causes an error.
- C. Failures can be caused by defects, but also by environmental conditions.
- D. Bugs are defects found during component testing, while failures are defects found during higher test levels.
Câu 23. The fact that defects are usually not evenly distributed among the various modules that make up a software application, but rather their distribution tends to reflect the Pareto principle:
- A. is a false myth.
- B. is expressed by the testing principle referred to as ‘Tests wear out’.
- C. is expressed by the testing principle referred to as ‘Defects cluster together’.
- D. is expressed by the testing principle referred to as ‘Bug prediction’.
Câu 24. Which of the following is a test task that usually occurs during test implementation?
- A. Make sure the planned test environment is ready to be delivered.
- B. Find, analyse, and remove the causes of the failures highlighted by the tests.
- C. Archive the testware for use in future test projects.
- D. Gather the metrics that are used to guide the test project.
Câu 25. A virtual service emulating a real third-party service and the automated test scripts (aimed at testing the system under test) that interact with that service, are test work products that are typically created during:
- A. Test monitoring and control.
- B. Test implementation
- C. Test design
- D. Test analysis
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