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| Section | Weight | Objectives |
|---|---|---|
| Testing Throughout the Software Development Lifecycle | 15% | - Test types - Test levels - Software development models |
| Static Testing | 10% | - Review process - Static testing basics |
| Tool Support for Testing | 10% | - Benefits and risks of test automation - Test tools classification |
| Fundamentals of Testing | 20% | - What is testing? - Seven testing principles - Why testing is necessary |
| Managing the Test Activities | 20% | - Test planning and estimation - Risk-based testing - Test monitoring and control - Defect management |
| Test Analysis and Design | 25% | - Test case design - Test techniques
|
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NEW QUESTION # 63
Which of the following statements is an example of testing contributing to higher quality?
Answer: D
Explanation:
* The question is about identifying an example of testing contributing to higher quality. Quality is the degree to which a component, system or process meets specified requirements and/or user/customer needs and expectations1. Testing is the process consisting of all lifecycle activities, both static and dynamic, concerned with planning, preparation and evaluation of software products and related work products to determine that they satisfy specified requirements, to demonstrate that they are fit for purpose and to detect defects2.
* Therefore, testing contributes to higher quality by verifying and validating that the software products and related work products meet the specified requirements, are fit for purpose and have no defects, or at least have a reduced number of defects. Testing also provides information about the quality of the software products and related work products to the stakeholders, who can make informed decisions based on the test results3.
* Out of the four given statements, only option D is an example of testing contributing to higher quality, as it shows that testing has detected a defect (a flaw in a component or system that can cause the component or system to fail to perform its required function4) and that the defect has been resolved (fixed and confirmed) prior to release (delivery of the software product to the customer or end user).
This means that testing has prevented a potential failure (an event in which a component or system does not perform a required function within specified limits) from occurring in the operational environment, and thus has improved the quality of the software product.
* Option A is not an example of testing contributing to higher quality, as it is a reporting activity that summarizes the test results and evaluates the test objectives, but does not directly affect the quality of the software product or related work products. A test summary report is a document that records and communicates the outcomes of testing activities, including test completion criteria, test results, incident reports, test summary and evaluation, and lessons learned.
* Option B is not an example of testing contributing to higher quality, as it is a planning activity that estimates the resources and time needed for testing activities, but does not directly affect the quality of the software product or related work products. A test effort estimate is an approximation of the amount of work and/or the duration of time required to perform testing activities.
* Option C is not an example of testing contributing to higher quality, as it is a preparation activity that sets up the test environment (an environment containing hardware, instrumentation, simulators, software tools, and other support elements needed to conduct a test), but does not directly affect the quality of the software product or related work products. A test environment installation is a process of installing and configuring the test environment according to the test environment specification.
References:
* 1: ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 10
* 2: ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 11
* 3: ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 12
* 4: ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 13
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 13
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 77
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 78
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 79
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 80
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 81
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 82
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 83
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 84
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 85
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 86
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 87
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 88
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 89
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 90
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 91
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 92
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 93
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 94
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 95
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 96
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 97
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 98
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 99
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 100
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 101
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 102
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 103
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 104
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 105
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 106
* : ISTQB Certified Tester Foundation Level Syllabus 2018, Version 4.0, p. 107
NEW QUESTION # 64
A program is used to control a manufacturing line (turn machines on and off. start and stop conveyer belts, add raw materials to the flow. etc.). Not all actions are possible at all times. For example, there are certain manufacturing stages that cannot be stopped - unless there is an emergency. A tester attempts to evaluate if all such cases (where a specific action is not allowed) are covered by the tests.
Which coverage metric will provide the needed information for this analysis?
Answer: A
Explanation:
Branch coverage is a type of structural coverage metric that measures the percentage of branches or decision outcomes that are executed by the test cases. A branch is a point in the code where the control flow can take two or more alternative paths based on a condition. For example, an if-else statement is a branch that can execute either the if-block or the else-block depending on the evaluation of the condition. Branch coverage ensures that each branch is taken at least once by the test cases, and thus reveals the behavior of the software under different scenarios. Branch coverage is also known as decision coverage or all-edges coverage.
Branch coverage is suitable for testing the cases where a specific action is not allowed, because it can verify that the test cases cover all the possible outcomes of the conditions that determine the action. For example, if the program has a condition that checks if the manufacturing stage can be stopped, then branch coverage can ensure that the test cases cover both the cases where the stage can be stopped and where it cannot be stopped. This way, branch coverage can help identify any missing or incorrect branches that may lead to undesired or unsafe actions.
The other options are not correct because they are not suitable for testing the cases where a specific action is not allowed. Code coverage is a general term that encompasses various types of coverage metrics, such as statement coverage, branch coverage, data flow coverage, etc. Code coverage does not specify which type of coverage metric is used for the analysis. Data flow coverage is a type of structural coverage metric that measures the percentage of data flow paths that are executed by the test cases. A data flow path is a sequence of statements that define, use, or kill a variable. Data flow coverage is useful for testing the correctness and completeness of the data manipulation in the software, but not for testing the conditions that determine the actions. Statement coverage is a type of structural coverage metric that measures the percentage of statements or lines of code that are executed by the test cases. Statement coverage ensures that each statement is executed at least once by the test cases, but it does not reveal the behavior of the software under different scenarios. Statement coverage is a weaker criterion than branch coverage, because it does not account for the branches or decision outcomes in the code. Reference = ISTQB Certified Tester Foundation Level (CTFL) v4.0 syllabus, Chapter 4: Test Techniques, Section 4.3: Structural Testing Techniques, Pages 51-54.
NEW QUESTION # 65
You are testing the latest version of an air-traffic control system prior to production deployment using exploratory testing. After following an unusual sequence of input steps, the system crashes.
After the crash, you document a defect report with the following information:
- Title: System crashes unexpectedly during input.
- Brief summary: System crashes when an unusual sequence of inputs is used.
- Version: V1.001
- Test: Exploratory testing prior to production deployment
- Priority: Urgent
- Risk: High
- Reference: Screenshot of crashed application
What critical Information Is missing from this report?
Answer: A
Explanation:
The critical information missing from the defect report is a detailed description of the defect to enable reproduction. A clear and concise description of the steps taken to reproduce the defect is essential for developers to understand the context and to be able to replicate the issue in their environment. Without this information, it can be challenging to diagnose and fix the defect. The ISTQB CTFL syllabus emphasizes the importance of providing all necessary details in a defect report to facilitate effective communication and resolution.
NEW QUESTION # 66
Which of the following statements about estimation of the test effort is WRONG?
Answer: B
Explanation:
Effort estimate does not depend on the budget of the project, but rather on the scope, complexity, and quality of the software product and the testing activities1. Budget is a constraint that may affect the feasibility and accuracy of the effort estimate, but it is not a factor that determines the effort estimate. Effort estimate is the amount of work required to complete the testing activities, measured in terms of person-hours, person-days, or person-months2.
The other options are correct because:
A) Once the test effort is estimated, resources can be identified and a schedule can be drawn up, as they are interrelated aspects of the test planning process3. Resources are the people, tools, equipment, and facilities needed to perform the testing activities4. Schedule is the time frame and sequence of the testing activities, aligned with the project milestones and deadlines5.
B) Effort estimate can be inaccurate because the quality of the product under tests is not known, as it affects the number and severity of the defects that may be found and the rework that may be needed to fix them6. Quality is the degree to which the software product satisfies the specified requirements and meets the needs and expectations of the users and clients7.
D) Experience based estimation is one of the estimation techniques, which relies on the judgment and expertise of the testers and other project stakeholders to estimate the test effort based on similar projects or tasks done in the past. Experience based estimation can be useful when there is a lack of historical data, formal methods, or detailed information about the software product and the testing activities.
Reference =
1 ISTQB® Certified Tester Foundation Level Syllabus v4.0, 2023, p. 154
2 ISTQB® Certified Tester Foundation Level Syllabus v4.0, 2023, p. 155
3 ISTQB® Certified Tester Foundation Level Syllabus v4.0, 2023, p. 156
4 ISTQB® Certified Tester Foundation Level Syllabus v4.0, 2023, p. 157
5 ISTQB® Certified Tester Foundation Level Syllabus v4.0, 2023, p. 158
6 ISTQB® Certified Tester Foundation Level Syllabus v4.0, 2023, p. 159
7 ISTQB® Certified Tester Foundation Level Syllabus v4.0, 2023, p. 16
[8] ISTQB® Certified Tester Foundation Level Syllabus v4.0, 2023, p. 160
[9] ISTQB® Certified Tester Foundation Level Syllabus v4.0, 2023, p. 161
NEW QUESTION # 67
How is branch coverage determined?
Answer: C
NEW QUESTION # 68
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