ISTQB Question Bank 941 to 980

A thermometer measures temperature in whole degrees only. If the temperature falls below 18 degrees, the heating is switchedoff. It is switched on again when the temperature reaches 21 degrees. What are the best values in degrees to cover all equivalence partitions?

• 15,19 and 25.
• 17,18 and19.
• 18, 20 and 22.
• 16, 26 and 32.

A wholesaler sells printer cartridges. The minimum order quantity is 5. There is a 20% discount for orders of 100 or more printer cartridges. You have been asked to prepare test cases using various values for the number of printer cartridges ordered. Which of the following groups contain three test inputs that would be generated using Boundary Value Analysis?

• 5, 6, 20
• 4, 5, 80
• 4, 5, 99
• 1, 20, 100

What is the KEY difference between preventative and reactive approaches to testing?

• Preventative tests and reactive tests are designed as early as possible.
• Preventative tests are designed early; reactive tests are designed after the software has been produced.
• Preventative testing is always analytical; reactive testing is always heuristic.
• Preventative tests are designed after the software has been produced; reactive tests are designed early in response to review comments.

What determines the level of risk?

• The cost of dealing with an adverse event if it occurs.
• The probability that an adverse event will occur.
• The amount of testing planned before release of a system.
• The likelihood of an adverse event and the impact of the event.

Which of the following types of defects is use case testing MOST LIKELY to uncover?

<br>

i) Defects in the process flows during real-world use of the system.

ii) Defects in the interface parameters in integration testing.

iii) Integration defects caused by the interaction and interference of different components.

iv) Defects in the system as it transitions between one state and another.

• ii, iii.

• i, iii.

• iii, iv.

• i, ii

Which of the following is MOST important in the selection of a test approach?

• Availability of tools to support the proposed techniques.
• The budget allowed for training in proposed techniques.
• Available skills and experience in the proposed techniques.
• The willingness of the test team to learn new techniques.

Which of the following is a purpose of the review planning phase?

• Log defects.
• Explain the documents to the participants.
• Gather metrics.
• Allocate the individual roles.

A defect arrival rate curve:

• Shows the number of newly discovered defects per unit time
• Shows the number of open defects per unit time.
• Shows the cumulative total number of defects found up to this time.
• Any of these, depending on the company.

We can achieve complete statement coverage but still miss bugs because:

• The failure occurs only if you reach a statement taking the TRUE branch of an IF statement, and you got to the statement with a test that passed through the FALSE branch.
• The failure depends on the program’s inability to handle specific data values, rather than on the program’s flow of control.
• We are not required to test code that customers are unlikely to execute.
• All of the above

Maintenance releases and technical assistance centers are examples of which of the following costs of quality?

• External failure
• Internal failure
• Appraisal
• Prevention