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ISTQB Certified Tester Advanced Level Technical Test Analyst Sample Questions (Q39-Q44):

NEW QUESTION # 39
Which of the following elicitation techniques is BEST usedwhen questioning a large number of stakeholders specifically to obtain information for non-functional acceptance criteria?
SELECT ONE OPTION

A. Qualitative Questionnaires
B. Quality Analysis
C. Quantitative Questionnaires
D. Qualitative Review

Answer: C

Explanation:
Quantitative Questionnaires are the best elicitation technique for questioning a large number of stakeholders specifically to obtain information for non-functional acceptance criteria. This method allows for collecting measurable, numerical data from a broad audience efficiently, which is crucial for understanding and defining non-functional requirements such as performance, scalability, and usability

NEW QUESTION # 40
What is the earliest stage in the application's SDLC at which performance efficiency testing can be performed?

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

Answer: A

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 # 41
Given the following pseudo code for a program to solve quadratic equations:
program Quadratic Formula
integer: a, b, c, d
floating point: r1, r2
READ (a)
READ (b)
READ (c)
d := (b * b) - (4 * a * c)
IF d < 0 THEN
PRINT ("Imaginary Roots")
ELSE
r1 := (-b + sqrt(d)) / (2 * a)
r2 := (-b - sqrt(d)) / (2 * a)
PRINT ("first root is: " r1)
PRINT ("second root is: " r2)
ENDIF
END program Quadratic_Formula
Which of the following checklist items is MOST likely to indicate a problem in this program?

A. Are divisors tested for zero or noise?
B. Are there any redundant or unused variables?
C. Does the code avoid comparing floating point numbers for equality?
D. Are all variables properly defined with meaningful, consistent and clear names?

Answer: A

Explanation:
Analysis:
The given pseudo code for solving quadratic equations includes operations that involve division. One of the critical issues in such operations is ensuring that the divisor is not zero, which would result in a division by zero error.
Checklist Item:
D: Are divisors tested for zero or noise?:
* This checklist item addresses the potential problem of dividing by zero. In the pseudo code, the variable a is used as a divisor in the formula (-b ± sqrt(d)) / (2 * a). If a is zero, this will result in a division by zero error. Therefore, it is crucial to test whether a is zero before performing the division.
Explanation of Incorrect Options:
* A. Does the code avoid comparing floating point numbers for equality?:
* This is important but not directly relevant to the given pseudo code's primary issue.
* B. Are all variables properly defined with meaningful, consistent and clear names?:
* This is good practice but does not address the critical issue of division by zero.
* C. Are there any redundant or unused variables?:
* Identifying unused variables is helpful for code clarity but does not address the primary functional issue in the pseudo code.
References:
The ISTQB CTAL-TTA syllabus and standard code review practices emphasize the importance of ensuring safe arithmetic operations, particularly avoiding division by zero.
Sources:
* ISTQB-CTAL-TTA Syllabus
* General knowledge on code review and arithmetic operations.

NEW QUESTION # 42
Consider the code fragment provided below:

The comment frequency of the code fragment is 13%.
To which non-functional quality characteristic does a good level of comment frequency especially contribute?

A. Usability
B. Portability
C. Maintainability
D. Performance Efficiency

Answer: C

Explanation:
The comment frequency in a code fragment relates to the number of comments in relation to the code size. A good level of comment frequency can significantly contribute to the maintainability of the software.
Maintainability is a non-functional quality characteristic that refers to the ease with which a software system can be modified to correct defects, update features, improve performance or other attributes, or adapt to a changed environment. Comments in the code help developers understand the logic, purpose, and functionality of the code, which is crucial when modifications are required. This does not directly contribute to portability, usability, or performance efficiency, which are concerned with different aspects of the software's operation and user interaction.

NEW QUESTION # 43
Below is the pseudo-code for the bingo program:

The bingo program contains a data flow anomaly. Which data flow anomaly can be found in this program?

A. An invalid value is assigned to variable "B".
B. The hard-coded value '2" should not be used.
C. Variable "AB is defined but subsequently not used.
D. Variable "MIN" is not assigned a value before using it.

Answer: D

Explanation:
In the provided pseudo-code for the Bingo program, the variable MIN is used in the statement MIN = MIN + A without being initialized with a value beforehand. This represents a classic 'use before define' anomaly, as the variable MIN must have an initial value before any operation like addition can be performed on it.

NEW QUESTION # 44
......

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ISTQB Certified Tester Advanced Level Technical Test Analyst Sample Questions (Q39-Q44):

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