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Question 1

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Which of the following statements about re-testing and regression testing are TRUE? I Re-testing should be performed after a defect is fixed. II Regression testing should always be performed after

Question 2

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Which of the following can be considered a VALID exit criterion? I Estimates of defect density or reliability measures. II . The completion and publication of an exhaustive Test Report. III . Acc

Question 3

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Which of the following s the most correct statement about state testing techniques?

Question 4

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A test manager decided to skip static testing since he believes bugs can be found easily by doing dynamic testing. Was this decision right or wrong?

Question 5

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In which of the following test documents would you expect to find test exit criteria described9

Question 6

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The following 4 equivalence classes are given: Which of the following alternatives includes correct test values for x. based on equivalence partitioning?

Question 7

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Which of the following coverage criteria results in the highest coverage for state transition based test cases?

Question 8

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Which of the following statements about testware are correct? I When closing the test activities, all the testware resources can be uninstalled and released II All the testware should be subject t

Question 9

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A QA manager of a start-up company needs to implement within a week a low cost incident management tool. Which of the following is the best option?

Question 10

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Which of the following statements regarding inspection is NOT true?

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Related questions

Which of the following can be considered a VALID exit criterion? I Estimates of defect density or reliability measures. II . The completion and publication of an exhaustive Test Report. III . Accuracy measures, such as code, functionality or risk coverage. IV Residual risks such as lack of code coverage in certain areas.

The following diagram displays the logical dependencies between requirements and the individual requirement priorities. For example, 'R2->R3' means that R3 is dependent on R2. Priority is indicated by the number next to the letter ''P' i.e. P1 has a higher priority than P2. Which one of the following options best describes the test execution sequence using both requirement dependency and priority

Which of the following BEST matches the descriptions with the different categories of test techniques? 1. Test cases are based on the test basis which may include the requirements, use cases and user stories 2. Test cases are based on the test basis which may include the software architecture or code 3. Test cases can show deviations from the requirements 4. These test techniques are applicable to both functional and non-functional testing 5. Tests are based on knowledge of developers, users and other stakeholders Black - Black-box test techniques White * White-box test techniques Experience - Experience-based test techniques

A financial institution is to implement a system that calculates the interest rates paid on investment accounts based on the sum invested. You are responsible for testing the system and decide to use equivalence partitioning and boundary value analysis to design test cases. The requirements describe the following expectations: Investment range | Interest rate R500 to RIO 000 10% RIO 001 to R50 000 11% R50 001 to RlOOOOO 12% RIOOOOl to R500 000 | 13% What is the minimum number of test cases required to cover all valid equivalence partitions for calculating the interest?

Which of the following about typical information found within a test plan is FALSE?

Consider the following simplified version of a state transition diagram that specifies the behavior of a video poker game: What Is the minimum number of test cases needed to cover every unique sequence of up to 3 states/2 transitions starting In the 'Start' state and ending In the 'End' state?

For the same financial institution in Question 12, with the same requirements and expectations, what would be the most likely investment values used in testing if two-point boundary value analysis is used to design test cases specific to the 13% interest rate equivalence partition?

The following decision table is used to assist a doctor in determining the drug therapy to prescribe for a patient (aged 6 to 65 years) diagnosed with acute sinusitis. The table consists of three Boolean conditions and six actions Based only on the given information, which of the following statements is TRUE?

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

A test score indicator for students produces a performance score based on a combination of the number of consecutive hours studied (below 4 hours, 4 to 8 hours. 9 to 12 hours or above 12 hours) and the average intensity of focus on the material during the study time (low, medium or high). Given the following test cases: hours intensity score T1 3 low 55 T2 14 high 95 T3 9 low 75 What is the minimum number of additional test cases that are needed to ensure full coverage of all valid INPUT equivalence partitions?

Question 104 - CTFL4 discussion

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During component testing of a program if 100% decision coverage is achieved, which of the following coverage criteria is also guaranteed to be 100%?

A.

100% Stale transition coverage

B.

100% Equivalence class coverage

C.

100% Boundary value coverage

D.

100% Statement coverage

Suggested answer: D

Explanation:

Statement coverage is a structural coverage metric that measures the percentage of executable statements in the source code that are executed by a test suite1.Decision coverage is another structural coverage metric that measures the percentage of decision outcomes (such as branches or conditions) in the source code that are executed by a test suite1.Decision coverage is a stronger metric than statement coverage, because it requires that every possible outcome of each decision is tested, while statement coverage only requires that every statement is executed at least once2. Therefore, if a test suite achieves 100% decision coverage, it also implies that it achieves 100% statement coverage, because every statement in every branch or condition must have been executed.However, the converse is not true: 100% statement coverage does not guarantee 100% decision coverage, because some branches or conditions may have multiple outcomes that are not tested by the test suite2. For example, consider the following pseudocode:

if (x > 0) then print(''Positive'') else print(''Non-positive'') end if

A test suite that executes this code with x = 1 and x = -1 will achieve 100% statement coverage, because both print statements are executed. However, it will not achieve 100% decision coverage, because the condition x > 0 has only been tested with two outcomes: true and false. The third possible outcome, x = 0, has not been tested by the test suite. Therefore, the test suite may miss a potential bug or error in the condition or the branch.

The other options, such as stale transition coverage, equivalence class coverage, and boundary value coverage, are not guaranteed to be 100% by achieving 100% decision coverage.Stale transition coverage is a structural coverage metric that measures the percentage of transitions between states in a state machine that are executed by a test suite3.Equivalence class coverage is a functional coverage metric that measures the percentage of equivalence classes (or partitions) of input or output values that are tested by a test suite4.Boundary value coverage is another functional coverage metric that measures the percentage of boundary values (or extreme values) of input or output ranges that are tested by a test suite4. These metrics are independent of decision coverage, because they are based on different aspects of the system under test, such as its behavior, functionality, or specification. Therefore, achieving 100% decision coverage does not imply achieving 100% of any of these metrics, and vice versa.Reference=ISTQB Certified Tester Foundation Level Syllabus v4.0,Test Coverage in Software Testing - Guru99,Structural Coverage Metrics - MATLAB & Simulink - MathWorks India,Test Design Coverage in Software Testing - GeeksforGeeks.

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asked 18/09/2024

Han Valk

46 questions

User

Your answer: A B C D

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