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ISTQB Certified Tester Advanced Level Technical Test Analyst Sample Questions (Q132-Q137):

NEW QUESTION # 132
Consider the pseudo code for the Answer program:

Which of the following statements about the Answer program BEST describes the control flow anomalies to be found in the program?

A. The Answer program contains unreachable code.
B. The Answer program contains no control flow anomalies.
C. The Answer program contains unreachable code and an infinite loop.
D. The Answer program contains an infinite loop.

Answer: C

Explanation:
The provided pseudo code for the Answer program shows a WHILE loop that will always execute because the condition for the loop to terminate (a >= d) is never met within the loop's body. This results in an infinite loop.
Additionally, since the value of 'b' is initialized with 'a + 10' and 'a' starts from a value that is read and then set to 2, 'b' will never be equal to 12. Therefore, the 'THEN' branch of the IF statement, which includes 'print(b)', is unreachable. These are control flow anomalies because they represent logic in the code that will not function as presumably intended.

NEW QUESTION # 133
You have run static analysis tools against four large, complex code components (A, B, C, and D) with the following measures reported:
(Insert Table 1)
You must decide which component should be selected FIRST for applying maintainability improvements. The combination of Cohesion and Coupling is regarded as the MOST important factor, v/ith the number of repeated code sections as the next important factor.
Which component should you select?

A. Component A
B. Component B
C. Component D
D. Component C

Answer: B

Explanation:
When deciding which component to select first for maintainability improvements, it's essential to prioritize the most critical factors. In this case, the combination of Cohesion and Coupling is the most important factor, followed by the number of repeated code sections.
* Cohesion and Coupling:
* High Cohesion and Low Coupling are desirable qualities in software components. High cohesion means that the component's responsibilities are closely related, making the component easier to understand, test, and maintain. Low coupling means that the component has fewer dependencies on other components, making it less prone to ripple effects from changes in other parts of the system.
* Conversely, Low Cohesion and High Coupling indicate poor design quality. Low cohesion suggests that the component has many unrelated responsibilities, which can make it harder to maintain and understand. High coupling indicates that the component is highly dependent on other components, which can lead to more significant maintenance challenges due to the ripple effect of changes.
* Number of Repeated Code Sections:
* Repeated code sections are also an important factor because they can indicate code duplication, which can lead to inconsistencies and higher maintenance costs. Reducing the number of repeated code sections can improve maintainability by promoting reusability and reducing redundancy.
Based on the given measures:
* Component A has high cohesion and low coupling, which are desirable. It also has a moderate number of repeated code sections (4).
* Component B has low cohesion and high coupling, which are the worst in terms of design quality. It also has the highest number of repeated code sections (5).
* Component C has low cohesion and high coupling, which are poor in terms of design quality. It has the lowest number of repeated code sections (2).
* Component D has high cohesion and low coupling, which are desirable. It also has the highest number of repeated code sections (5).
Considering the most important factor first (Cohesion and Coupling):
* Component B and Component C are both poor in terms of cohesion and coupling, but Component B is
* worse because it has a higher number of repeated code sections than Component C.
* Component A and Component D are both good in terms of cohesion and coupling, but they are less critical to address first than the poor components.
Therefore, Component B should be selected first for applying maintainability improvements because it has the poorest combination of low cohesion and high coupling, along with the highest number of repeated code sections. This aligns with the prioritization criteria provided.
References:
* The importance of Cohesion and Coupling in software design is well-documented in the ISTQB CTAL-TTA syllabus and other software engineering literature. (Refer to ISTQB-CTAL-TTA Syllabus v4.0)
* The analysis aligns with the sample exam question and answer pattern found in the ISTQB CTAL-TTA Sample Exam Questions and Answers documents. (Refer to ISTQB_CTAL-TTA_Sample-Exam-Questions_v4.1 and ISTQB_CTAL-TTA_Sample-Exam-Answers_v4.1)

NEW QUESTION # 134
Within an embedded software project, the maintainability of the software is considered to be critical. It has been decided to use static analysis on each delivered software component.
Which of the following metrics is NOT a maintainability metric typically used with static analysis?

A. Mean Time Between Failures
B. Comment Frequency
C. Number of Function Calls
D. Number of Lines of Code (LOG)

Answer: A

Explanation:
Maintainability metrics typically used with static analysis include measures that reflect the complexity and understandability of the code, such as Number of Lines of Code (LOC), Number of Function Calls, and Comment Frequency. These metrics help in assessing how easily the software can be understood, modified, and maintained. Mean Time Between Failures (MTBF), on the other hand, is a reliability metric. It measures the time elapsed between inherent failures of a system during operation. MTBF is used to predict the system's reliability and is not directly related to the maintainability of the code. Reliability metrics like MTBF would be used in the testing phase to measure the operational reliability of the system rather than during static analysis for maintainability assessment.

NEW QUESTION # 135
Given the following decision: IF X < 5 OR Y > 10 THEN
Which of the following sets of test inputs will achieve full MC/DC coverage?

A. X=4 and Y=7
X=6 and Y=12
X=5 and Y=10
B. X=3 and Y=10
X=5 and Y=15
X=0 and Y=15
C. X=5 and Y=8
X=2 and Y=12
X=4 and Y=4
D. X=4 and Y=11
X=7 and Y=10

Answer: D

Explanation:
To achieve full Modified Condition/Decision Coverage (MC/DC), each condition within a decision must be shown to independently affect the outcome of the decision. For the decision IF X < 5 OR Y > 10 THEN, the conditions are:
* Condition 1: X < 5
* Condition 2: Y > 10
We need to test these conditions in such a way that each condition independently influences the decision outcome. Let's analyze the options:
* Option A:
* X=4 and Y=7 (X < 5 is true, Y > 10 is false; overall decision true)
* X=6 and Y=12 (X < 5 is false, Y > 10 is true; overall decision true)
* X=5 and Y=10 (X < 5 is false, Y > 10 is false; overall decision false) This set achieves full MC/DC coverage because each condition is shown to independently affect the outcome.
* Option B:
* X=4 and Y=11 (X < 5 is true, Y > 10 is true; overall decision true)
* X=7 and Y=10 (X < 5 is false, Y > 10 is false; overall decision false) This set achieves full MC/DC coverage because it demonstrates both conditions independently affecting the outcome.
* Option C:
* X=5 and Y=8 (X < 5 is false, Y > 10 is false; overall decision false)
* X=2 and Y=12 (X < 5 is true, Y > 10 is true; overall decision true)
* X=4 and Y=4 (X < 5 is true, Y > 10 is false; overall decision true)
This set does not fully achieve MC/DC coverage as it does not demonstrate the impact of Y > 10 being false while X < 5 is false.
* Option D:
* X=3 and Y=10 (X < 5 is true, Y > 10 is false; overall decision true)
* X=5 and Y=15 (X < 5 is false, Y > 10 is true; overall decision true)
* X=0 and Y=15 (X < 5 is true, Y > 10 is true; overall decision true)
This set does not achieve MC/DC coverage because it does not show the decision outcome when both conditions are false.
Therefore, the correct answer is B. X=4 and Y=11, X=7 and Y=10.

NEW QUESTION # 136
What is the earliest stage in the application's SDLC at which performance efficiency testing can be performed?

A. During beta testing
B. During system testing
C. During requirements analysis
D. During unit testing

Answer: C

Explanation:
The earliest stage in the application's SDLC at which performance efficiency testing can be performed is during requirements analysis. At this stage, performance requirements and goals are established, providing a baseline for what needs to be tested and verified throughout the later stages of development.

NEW QUESTION # 137
......

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