ISTQB Learning

Test your knowledge

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Exam 5 - 75 minutes

1 / 40

1. For a given risk, its risk level is $1,000 and its risk likelihood is estimated as 50%.

What is the risk impact?

Select ONE options.

2 / 40

2. Which of the following is the BEST example of how traceability supports testing?

Select ONE option.

3 / 40

3. Which of the following is an example of why testing is necessary?

Select ONE option.

4 / 40

4. Which of the following CANNOT be examined by static testing?

Select ONE option.

5 / 40

5. At the beginning of each iteration, the team estimates the amount of work (in person-days) they will need to complete during the iteration. Let E(n) be the estimated amount of work for iteration n, and let A(n) be the actual amount of work done in iteration n. From the third iteration, the team uses the following estimation model based on extrapolation:

 

 

The graph shows the estimated and actual amount of work for the first four iterations.

What is the estimated amount of work for iteration #5?

Select ONE option.

6 / 40

6. Which of the following is a good testing practice that applies to all software development lifecycles?

Select ONE option.

7 / 40

7. Which of the following are product risks?

Select TWO options.

8 / 40

8. In your project there has been a delay in the release of a brand-new application and test execution started late, but you have very detailed domain knowledge and good analytical skills. The full list of requirements has not yet been shared with the team, but management is asking for some test results to be presented.

Which test technique fits BEST in this situation?

Select ONE option.

9 / 40

9. Which of the following is a factor that contributes to a successful review?

Select ONE option.

10 / 40

10. You are applying state transition testing to the hotel room reservation system modeled by the following state transition table, with 4 states and 5 different events:

Assuming all test cases start in the ‘Requesting’ state, which of the following test cases, represented as sequences of events, achieves the highest valid transitions coverage?

Select ONE option.

11 / 40

11. Which of the following statements BEST describes the difference between decision table testing and branch testing?

Select ONE option.

12 / 40

12. Which test activity does a data preparation tool support?

Select ONE option.

13 / 40

13. Which of the following factors (i-v) have SIGNIFICANT influence on the test process?

i. The SDLC
ii. The number of defects detected in previous projects
iii. The identified product risks
iv. New regulatory requirements forcing formal white-box testing
v. The test environment setup

Select ONE option.

14 / 40

14. You are a member of a test team located in North America, developing a product for a client located in Europe. The team is agile and follows the DevOps approach and uses a continuous integration/continuous delivery pipeline.

Which of the following is the LEAST effective way to communicate test progress to the customer?

Select ONE option.

15 / 40

15. Why does white-box testing facilitate defect detection even when the software specification is vague, outdated or incomplete?

Select ONE option.

16 / 40

16. Which of the following is NOT a purpose of a test plan?

Select ONE option.

17 / 40

17. You are testing a PIN validator, which accepts valid PINs and rejects invalid PINs. A PIN is a sequence of digits. A PIN is valid if it consists of four digits, at least two of which are different. You have identified the following valid equivalence partitions:

Variable: PIN code length

• The partition “length correct” - four-digit PINs
• The partition “length incorrect” - PINs with length other than 4

Variable: Number of different digits

• The partition “number of different digits correct” - PINs with at least two different digits
• The partition “number of different digits incorrect” - PINs with all digits being the same

Which of the following is a MINIMUM set of input test data that covers all identified equivalence partitions?

Select ONE option.

18 / 40

18. Which of these statements is NOT a factor that contributes to successful reviews?

Select ONE option.

19 / 40

19. In many software organizations the test department is called the Quality Assurance (QA) department. Is this sentence correct or not and why?

Select ONE option.

20 / 40

20. You are testing a form that verifies the correctness of the length of the password given as input. The form accepts a password with the correct length and rejects a password that is too short or too long. The password length is correct if it has between 6 and 12 characters inclusive. Otherwise, it is considered incorrect.

At first, the form is empty (password length = 0). You apply boundary value analysis to the “password length” variable.

Your set of test cases achieves 100% 2-value boundary value coverage. The team decided that due to the high risk of this component, test cases should be added to ensure 100% 3-value boundary value coverage.

Which additional password lengths should be tested to achieve this?

Select ONE option.

21 / 40

21. Let the branch coverage metric be defined as BCov = (X / Y) * 100%.

What do X and Y represent in this formula?

Select ONE option.

22 / 40

22. W A developer was asked to implement the following business rule:

You design the test cases using 2-value boundary value analysis.

Which of the following sets of test inputs achieves the greatest coverage?

Select ONE option.

23 / 40

23. Your test suite S for a program P achieves 100% statement coverage. It consists of three test cases, each of which achieves 50% statement coverage.

Which of the following statements is CORRECT?

Select ONE option.

24 / 40

24. You have been assigned as a tester to a team producing a new system incrementally. You have noticed that no changes have been made to the existing regression test cases for several iterations and no new regression defects were identified. Your manager is happy, but you are not. Which testing principle explains your skepticism?

Select ONE option.

25 / 40

25. A wine storage system uses a control device that measures the wine cell temperature T (measured in °C, rounded to the nearest degree) and alarms the user if it deviates from the optimal value of 12, according to the following rules:

• if T = 12, the system says, “optimal temperature”

• if T < 12, the system says, “temperature is too low!”

• if T > 12, the system says, “temperature is too high!”

You want to use the 3-point boundary value analysis (BVA) to verify the behavior of the control device. A test input is a temperature in °C provided by the device.

What is the MINIMAL set of test inputs that achieves 100% of the desired coverage?

Select ONE option.

26 / 40

26. Which of the following is NOT a valid purpose for a test report?

Select ONE options.

27 / 40

27. Which of the following is an example of a test-first approach to development?

Select ONE option.

28 / 40

28. Which of the following BEST describes how using checklist-based testing can result in increased coverage?

Select ONE option.

29 / 40

29. Which of the following tests is MOST likely to be performed as part of functional testing?

Select ONE option.

30 / 40

30. According to the testing quadrants model, which of the following falls into quadrant Q1 (“technology facing” and “support the team”)?

Select ONE option.

31 / 40

31. Which of the following is a characteristic of experience-based test techniques?

Select ONE option.

32 / 40

32. Which types of failures (1-4) fit which test levels (A-D) BEST?

1. Failures in system behavior as it deviates from the user’s business needs
2. Failures in communication between components
3. Failures in logic in a module
4. Failures in not correctly implemented business rules

A. Component testing
B. Component integration testing
C. System testing
D. Acceptance testing

Select ONE option.

33 / 40

33. How can the testing quadrants be beneficial for testing?

Select ONE options.

34 / 40

34. You are designing test cases based on the following state transition diagram:

What is the MINIMUM number of test cases required to achieve 100% valid transitions coverage?

Select ONE option.

35 / 40

35. Which of the following BEST describes retrospectives?

Select ONE option.

36 / 40

36. You run two test cases, T1 and T2, on the same code. Test T1 achieved 40% statement coverage and test T2 achieved 65% statement coverage.

Which of the following sentences must be necessarily true?

Select ONE option.

37 / 40

37. Given the following test tool categories:

i. Collaboration tools
ii. DevOps tools
iii. Management tools
iv. Non-functional testing tools
v. Test design and implementation tools

Tools from which of the categories are MOST likely to facilitate test execution?

Select ONE options.

38 / 40

38. Given the following review types:

1. Technical review
2. Informal review
3. Inspection
4. Walkthrough

And the following descriptions:

A. Includes objectives such as gaining consensus, generating new ideas, and motivating authors to improve
B. Includes objectives such as educating reviewers, gaining consensus, generating new ideas and detecting potential defects
C. The main objective is detecting potential defects and it requires metrics collection to support process improvement
D. The main objective is detecting potential defects and it generates no formal documented output

Which of the following BEST matches the review types and the descriptions?

Select ONE option.

39 / 40

39. Your favorite bicycle daily rental store has just introduced a new Customer Relationship Management system and asked you, one of their most loyal members, to test it.
The implemented features are as follows:

• Anyone can rent a bicycle, but members receive a 20% discount
• However, if the return deadline is missed, the discount is no longer available
• After 15 rentals, members get a gift: a T-Shirt

Decision table describing the implemented features looks as follows:

Based ONLY on the feature description of the Customer Relationship Management system, which of the above rules describes an impossible situation?

 

Select ONE option.

40 / 40

40. Decide which of the following statements (i-v) are true for static testing.

i. Abnormal external behaviors are easier to identify with this testing
ii. Discrepancies from a coding standard are easier to find with this testing
iii. It identifies failures caused by defects when the software is run
iv. Its test objective is to identify defects as early as possible
v. Missing coverage for critical security requirements is easier to find and fix

Select ONE option.

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