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ISQI ISTQB Certified Tester Foundation Level (CTFL) v4.0 Sample Questions (Q71-Q76):

NEW QUESTION # 71
Which of the following issues cannot be identified by static analysis tools?

A. Security vulnerabilities
B. Referencing a variable with an undefined value
C. Very low MTBF (Mean Time Between failure)
D. Potentially endless loops

Answer: C

Explanation:
Static analysis tools are software tools that examine the source code of a program without executing it. They can detect various types of issues, such as syntax errors, coding standardsviolations, security vulnerabilities, and potential bugs12. However, static analysis tools cannot identify issues that depend on the runtime behavior or performance of the program, such as very low MTBF (Mean Time Between failure)3. MTBF is a measure of the reliability of a system or component. It is calculated by dividing the total operating time by the number of failures. MTBF reflects how often a system or component fails during its expected lifetime. Static analysis tools cannot measure MTBF because they do not run the program or observe its failures. MTBF can only be estimated by dynamic testing, which involves executing the program under various conditions and collecting data on its failures4. Therefore, very low MTBF is an issue that cannot be identified by static analysis tools. The other options, such as potentially endless loops, referencing a variable with an undefined value, and security vulnerabilities, are issues that can be identified by static analysis tools. Static analysis tools can detect potentially endless loops by analyzing the control flow and data flow of the program and checking for conditions that may never become false5. Static analysis tools can detect referencing a variable with an undefined value by checking the scope and initialization of variables and reporting any use of uninitialized variables6. Static analysis tools can detect security vulnerabilities by checking for common patterns of insecure code, such as buffer overflows, SQL injections, cross-site scripting, and weak encryption. References = What Is Static Analysis? Static Code Analysis Tools - Perforce Software, How Static Code Analysis Works | Perforce, Static Code Analysis: Techniques, Top 5 Benefits & 3 Challenges, What is MTBF? Mean Time Between Failures Explained | Perforce, Static analysis tools - Software Testing MCQs -CareerRide, ISTQB_Chapter3 | Quizizz, [Static Code Analysis for Security Vulnerabilities | Perforce].

NEW QUESTION # 72
Which ONE of the following options isNOTa benefit oftest automation?

A. Reduced test execution times
B. Prevention of simple human errors
C. Eliminating completely the need for manual testing
D. More objective assessment

Answer: C

Explanation:
Test automationimproves efficiency and accuracy, butit does NOT eliminate manual testing (D).
* (A) is correctbecause automationspeeds up execution.
* (B) is correctas automated tests produceconsistent and unbiased results.
* (C) is correctbecause automationreduces human errors in repetitive tests.
However,manual testing remains essential for exploratory testing, usability testing, and complex test scenarios.
Reference:ISTQB CTFL v4.0 Syllabus, Section 6.2 - Test Automation Benefits and Risks

NEW QUESTION # 73
A test status report should:

A. always be based on the same template within an organization, as its structure and contents should not be affected by the audience to which the report is presented
B. specify the lines of communication between testing, other lifecycle activities, and within the organization that were chosen at the outset of the test project
C. be produced as part of test completion activities and report unmitigated product risks to support the decision whether or not to release the product
D. specify the impediments to carrying out the planned test activities in the reporting period and the corresponding solutions put in place to remove them

Answer: D

Explanation:
A test status report communicates the current status, progress, and issues encountered during testing to stakeholders. It is crucial for effective test management and decision-making.
* Option A:Correct as it involves reporting impediments and solutions, which are essential for ongoing test activities.
* Option B:Incorrect because test status reports are not limited to test completion activities and focus more on ongoing test status rather than final unmitigated risks.
* Option C:Incorrect as the structure and contents of reports should be tailored to the audience's needs to ensure effective communication.
* Option D:Incorrect because specifying communication lines is typically done in the test plan, not the status report.
Thus, option A best describes a key aspect of a test status report.

NEW QUESTION # 74
Which of the following statements is CORRECT about White-box testing?

A. White-box testing helps find defects because it provides for requirements based coverage
B. White-box testing helps find defects even when specifications are vague because it takes into account the code.
C. White-box testing helps find defects because it focuses on defects rather than failures
D. White-box testing helps find defects because they can be used to measure statement coverage

Answer: D

Explanation:
White-box testing, also known as structural testing, involves testing the internal structures or workings of an application, as opposed to its functionality (which is tested by black-box testing). The correct statement about white-box testing is that it helps find defects by measuring aspects such as statement coverage.
* Statement Coverage: White-box testing techniques like statement coverage measure whether each statement in the code has been executed at least once. This helps ensure that all parts of the code are tested and can reveal defects in areas that might not be reached by black-box testing alone.
Other statements are less accurate in the context of white-box testing:
* Specifications being vague: White-box testing is code-focused, not requirement-focused. If specifications are vague, it affects both white-box and black-box testing. The main advantage of white-box testing is that it allows testers to create tests based on the code's structure and logic.
* Requirements-based coverage: This is typically associated with black-box testing, which derives tests from specifications and requirements. White-box testing, on the other hand, derives tests from the code itself.
* Focus on defects rather than failures: Both white-box and black-box testing aim to identify defects, but white-box testing does this through code coverage and examining the code paths directly. It does not focus exclusively on defects rather than failures; it is just another method to identify potential issues.

NEW QUESTION # 75
The following chart represents metrics related to testing of a project that was competed. Indicate what is represented by tie lines A, B and the axes X.Y

Answer: D

Explanation:
Option D correctly explains what is represented by the lines A, B and the axes X, Y in a testing metrics chart. According to option D:
X-axis represents Time
Y-axis represents Count
Line A represents Number of open bugs
Line B represents Total number of executed tests
This information is essential in understanding and analyzing the testing metrics of a completed project.

NEW QUESTION # 76
......

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