Free Access to ISTQB.ISTQB-CTFL.v2026-04-09.q129 with Valid Practice Test (Page 2)

Question 1

Which of the following issues cannot be identified by static analysis tools?

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

Correct Answer: A

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 standards violations, 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. Reference = 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].

Question 2

Which of the following statements regarding the testing quadrants model is correct?

A.The testing quadrants model assigns test types to the corresponding V-Model test levels.
B.The testing quadrants model provides a way of differentiating between types of tests and assists in explaining them to stakeholders.
C.The testing quadrants model assigns tests from one of the four quadrants to each iteration in the Agile development.
D.With the testing quadrants model, tests can be either business-oriented or product-oriented.

Question 3

A software calculates the annual car tax using three inputs:
- E; the emission level of the vehicle
- P: the power of the vehicle
-T the type of the vehicle
The input value for P can be integer positive values between 15 and 350.
Which of the following answers contains a correct list of a boundary values for the P input?

A.14,351
B.14,15,350,351
C.15,350
D.5.175.500

Question 4

You are working in an agile team on the creation of software for use in robotic assistance systems that support industrial manufacturing processes. You are currently in the effort estimation phase using planning poker. In the current sprint, three user stories are to be implemented:
A . The assistance system is to have a customizable layout. For this purpose, the user should be able to choose between 3 combinations of font size and background color at startup.
B . In the initialization phase, the assistance system should validate the inputs of the 10 customer specific and process specific parameters against a list of 5 consistency rules and display the result to the user.
C . The assistance system currently supports the manufacturing process with 2 robot gripper arms, this shall be extended to 5 gripper arms. In addition, the system shall perform a pre-calculation of the movements of all gripper arms in real time and automatically stop the system in case of a calculated collision of the gripper arms.
You are now asked to estimate the test effort for each of these user stories by using planning poker. The following value rules apply for the test effort estimation:
3 - low (<= 10 test cases)
8 - medium (> 10 and <= 20 test cases)
13 - high (> 20 and <= 50 test cases)
21 - very high (> 50 and <= 100 test cases)
34 - too complex (number of test cases cannot be estimated from information) For each of the three user stories, which planning poker value makes the most sense when estimating the test effort?

A.A:13; B:13; C:13;
B.A:3; B:13; C:34;
C.A:3; B:21; C:8;
D.A:21; B:13; C:13;

Question 5

Manager responsibilities in formalreview includes adexceptone of the following:

A.Planning the review
B.Determines if the review objectives have been met
C.Decide on the execution of reviews
D.Allocate time for review

Question 1

Question 2

Question 3

Question 4

Question 5

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