ISTQB CTFL

Which one of the statements below describes the most common situation for a failure discovered

during testing or in production?

• The product crashed when the user selected an option in a dialog box.

• The wrong version of a compiled source code file was included in the build.

• The computation algorithm used the wrong input variables.

• The developer misinterpreted the requirement for the algorithm.

Mr. Test has been testing software applications on mobile devices for a period of 5 years. He has a

wealth of experience in testing mobile applications and achieves better results in a shorter time than

others. Over several months Mr. Test did not modify the existing automated test cases and did not

create any new test cases. This leads to fewer and fewer defects being found by executing the

tests. What principle of testing did Mr. Test not observe?

• Testing depends on the environment.

• Exhaustive testing is not possible.

• Repeating of tests will not find new defects.

• Defects cluster together

Which one of the following is TRUE?

• The purpose of regression testing is to check if the correction has been successfully

  implemented, while the purpose of confirmation testing is to confirm that the correction has

  no side effects.

• The purpose of regression testing is to detect unintended side effects, while the purpose of

  confirmation testing is to check if the system is still working in a new environment.

• The purpose of regression testing is to detect unintended side effects, while the purpose of

  confirmation testing is to check if the original defect has been fixed.

• The purpose of regression testing is to check if the new functionality is working, while the

  purpose of confirmation testing is to check if the original defect has been fixed.

Which one of the following is the BEST definition of an incremental development model?

• Defining requirements, designing software and testing are done in phases where in each

  phase a piece of the system is added.

• A phase in the development process should begins when the previous phase is complete.

• Testing is viewed as a separate phase which takes place after development has been

  completed.

• Testing is added to development as an increment.

Which of the following should NOT be a trigger for maintenance testing?

• Decision to test the maintainability of the software.

• Decision to test the system after migration to a new operating platform.

• Decision to test if archived data is possible to be retrieved.

• Decision to test after “hot fixes”.

Which TWO of the following statements about static testing are MOST true?

• Static testing is a cheap way to detect and remove defects.

• Static testing makes dynamic testing less challenging.

• Static testing allows early validation of user requirements.

• When testing safety-critical system, static testing has less value because dynamic testing

  finds the defects better.

For which of the following situations is explorative testing suitable?

• When time pressure requires speeding up the execution of tests already specified.

• When the system is developed incrementally and no test charter is available.

• When testers are available who have sufficient knowledge of similar applications and

  technologies.

• When an advanced knowledge of the system already exists and evidence is to be provided

  that it should be tested intensively.

An employee’s bonus is to be calculated. It cannot be negative, but it can be calculated down to

zero. The bonus is based on the length of employment:

 less than or equal to 2 years,

 more than 2 years but less than 5 years,

 5 to 10 years inclusively or longer than 10 years.

What is the minimum number of test cases required to cover all valid equivalence partitions for

calculating the bonus?

• 3

• 5

• 2

• 4

A video application has the following requirement: The application shall allow playing a video on the

following display resolution:

1. 640x480.

2. 1280x720.

3. 1600x1200.

4. 1920x1080.

Which of the following list of test cases is a result of applying the equivalence partitioning test

technique to test this requirement?

• Verify that the application can play a video on a display of size 1920x1080 (1 test case).

• Verify that the application can play a video on a display of size 640x480 and 1920x1080 (2

  test cases).

• Verify that the application can play a video on each of the display sizes in the requirement

  (4 test cases).

• Verify that the application can play a video on any one of the display sizes in the

  requirement (1 test case).

Which of the following metrics would be MOST useful to monitor during test execution?

• Percentage of executed test cases.

• Average number of testers involved in the test execution.

• Coverage of requirements by source code.

• Percentage of test cases already created and reviewed .