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BCS CTFL4 考試大綱：

主題	簡介
主題 1	Fundamentals of Testing: It discusses the basic principles related to testing. The topic evaluates your understandings about the test process.
主題 2	Test Analysis and Design: It focuses on black-box and the collaboration-based test approach.
主題 3	Testing Throughout the Software Development Lifecycle: This topic explains how testing is incorporated into different development approaches. It also focuses on the concepts of test-first approaches.

最新的 ISTQB Certified Tester CTFL4 免費考試真題 (Q64-Q69):

問題 #64
You are testing a system that is used in motor vehicles to warn the driver of an obstacle when re-versing.
Output is provided by a series of LED lights (green, yellow, and red), each illuminated based on clearly defined conditions.
The following summary describes the functionality:
*Object within 10 metres, green LED lit.
*Object within 5 metres, yellow LED lit.
*Object within 1 metre, red LED lit.
*Setting sensitivity mode to "ON" will result in only the red LED being lit when the object is within 1 metre.
The following decision table describes the rules associated with the functioning of this proximity warning system:

Which intended functionality is tested by Rule 5 in the decision table?

A. Object is within 5 metres of the vehicle and the sensitivity mode is switched "on", resulting in no LED being lit.
B. Object is within 5 metres of the vehicle and the sensitivity mode is switched "on", resulting in the yellow LED being lit.
C. Object is within 5 metres of the vehicle and the sensitivity mode is switched "off", resulting in the yellow LED being lit.
D. Object is within 5 metres of the vehicle and the sensitivity mode is switched "off", resulting in no LED being lit.

答案：A

解題說明：
Rule 5 in the decision table indicates that when the object is within 5 metres of the vehicle and the sensitivity mode is switched "on", no LED is lit. This matches the conditions and actions described in the decision table provided, ensuring that only the red LED is lit when the sensitivity mode is on and the object is within 1 metre, otherwise no LED is lit .

問題 #65
Which of the following statements about checklist-based testing is TRUE?

A. In checklist-based testing, using checklists at a high level of detail is more likely to produce test cases that are easier to reproduce than those using checklists at a low level of detail
B. Checklist-based testing is a review technique that can be used in a formal review process where reviewers, during individual review, try to detect issues within the work product based on a checklist
C. Checklists used in checklist-based testing should be reviewed periodically for updates as, over time, test cases designed using the same checklist may become less effective at finding defects.
D. Checklist-based testing is a technique for managing the review meeting that can be applied in those reviews where the use of checklists is mandatory, as is often the case in formal reviews.

答案：C

解題說明：
Checklist-based testing is a technique where testers use pre-determined checklists to ensure that important aspects of a work product are evaluated. Over time, these checklists should be reviewed and updated periodically to maintain their effectiveness in detecting defects. As systems evolve, outdated checklists may miss new types of defects, thus diminishing their usefulness. Therefore, statement D is true according to the ISTQB CTFL syllabus.

問題 #66
Which of the following statements about static testing and dynamic testing is true?

A. Unlike dynamic testing, which can be also performed manually, static testing cannot be performed without specialized tools
B. Unlike dynamic testing, which focuses on detecting potential defects, static testing focuses on detecting failures which may be due to actual defects
C. Static testing is usually much less cost-effective than dynamic testing
D. Both static testing and dynamic testing can be used to highlight issues associated with non-functional characteristics

答案：D

解題說明：
This answer is correct because static testing and dynamic testing are both types of testing that can be used to highlight issues associated with non-functional characteristics, such as usability, performance, security, reliability, etc. Static testing is a type of testing that involves the analysis of software work products, such as requirements, design, code, or test cases, without executing them. Dynamic testing is a type of testing that involves the execution of software work products, such as code or test cases, using inputs and verifying outputs. Both static testing and dynamic testing can be applied to different test levels and test types, and can use different test techniques and tools, to evaluate the non-functional characteristics of the software product. References: ISTQB Glossary of Testing Terms v4.0, ISTQB Foundation Level Syllabus v4.0, Section 2.2.1.1, Section 2.2.1.2

問題 #67
Which ONE of the following statements does NOT describe how testing contributes to higher quality?

A. The testing of software demonstrates the absence of defects.
B. Properly designed tests that pass reduce the level of risk in a system.
C. Performing a review of the requirement specifications before implementing the system can enhance quality.
D. Software testing identifies defects, which can be used to improve development activities.

答案：A

解題說明：
The testing of software does not demonstrate the absence of defects, but rather the presence of defects or the conformance of the software to the specified requirements1. Testing can never prove that the software is defect-free, as it is impossible to test all possible scenarios, inputs, outputs, and behaviors of the software2. Testing can only provide a level of confidence in the quality of the software, based on the coverage, effectiveness, and efficiency of the testing activities3.
The other options are correct because:
A . Properly designed tests that pass reduce the level of risk in a system, as they verify that the system meets the expected quality attributes and satisfies the needs and expectations of the users and clients4. Risk is the potential for loss or harm due to the occurrence of an undesirable event5. Testing can help to identify, analyze, prioritize, and mitigate the risks associated with the software product and project6.
C . Software testing identifies defects, which can be used to improve development activities, as they provide feedback on the quality of the software and the effectiveness of the development processes7. Defects are flaws or errors in the software that cause it to deviate from the expected or required results or behavior. Testing can help to detect, report, track, and resolve the defects, and prevent them from recurring in the future.
D . Performing a review of the requirement specifications before implementing the system can enhance quality, as it can ensure that the requirements are clear, complete, consistent, testable, and aligned with the needs and expectations of the users and clients. Requirements are the specifications of what the software should do and how it should do it. Testing can help to validate that the requirements are met by the software, and verify that the software is implemented according to the requirements.
Reference =
1 ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 10
2 ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 11
3 ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 12
4 ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 13
5 ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 97
6 ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 98
7 ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 14
[8] ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 15
[9] ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 16
[10] ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 17
[11] ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 18
[12] ISTQB Certified Tester Foundation Level Syllabus v4.0, 2023, p. 19

問題 #68
Which of the following statements describes regression testing?
I. Retesting of a fixed defect
II. Testing of an already tested program
III. Testing of new functionality in a program
IV. Regression testing applies only to functional testing
V Tests that do not nave to be repeatable, because They are only used once

A. II
B. I, IV
C. I, III, IV
D. II, IV, V

答案：A

解題說明：
Regression testing is the re-running of functional and non-functional tests to ensure that previously developed and tested software still performs as expected after a change1 It does not involve retesting of a fixed defect, testing of new functionality, or applying only to functional testing. Tests that are used for regression testing should be repeatable, because they are used to verify the stability of the software after each change2 References = ISTQB Certified Tester Foundation Level (CTFL) v4.0 Syllabus, Chapter 4, Section
4.2.2, Page 291; ISTQB Glossary of Testing Terms v4.0, Page 292

問題 #69
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