A review of the following pseudo code is to be performed using a checklist:
Module Vowel Counter
Message: array of Characters
M, N: Integer
ACount, ECount, ICount, OCount, UCount: Integer
BEGIN
I=1
Read Nextchar
While Nextchar <> 'S'
DO
Message (I) = Nextchar
I = I+1
Read Nextchar
ENDWHILE
FOR M = 1 To I
DO
Print (Message(M))
IF Message (M) = 'E'
THEN
ECount = ECount + 1
ELSE
IF Message (M) = 'A'
THEN
ACount = ACount + 1
ELSE
IF Message (M) = 'I'
THEN
ICount = ICount + 1
ELSE
IF Message (M) = 'O'
THEN
OCount = OCount + 1
ELSE
IF Message (M) = 'U'
THEN
UCount = UCount + 1
ENDIF
ENDIF
ENDIF
ENDIF
ENDIF
ENDFOR
Print ('Message contains ' ACount + ECount + ICount + OCount + UCount ' vowels')
END
Which of the following checklist items would find code errors in this scenario?
A) Are all variables properly declared?
B) Are all loops, branches, and logic constructs complete, correct, and properly nested?
C) Are all cases covered in an IF-ELSEIF, including ELSE or DEFAULT clauses?
D) Are loop termination conditions obvious and invariably achievable?
E) Are there any redundant or unused variables?
Analysis:
The given pseudo code for the Vowel Counter module contains potential issues that can be identified using a checklist.
Checklist Items:
B . Are all loops, branches, and logic constructs complete, correct, and properly nested?:
This item will help identify errors in the structure and nesting of loops and conditional statements. Proper nesting and completeness are crucial for the code to execute as intended.
C . Are all cases covered in an IF-ELSEIF, including ELSE or DEFAULT clauses?:
This item ensures that all possible cases are accounted for in conditional statements, including a final ELSE clause to handle unexpected values. This is important to avoid logical errors where certain conditions are not handled.
Explanation of Incorrect Options:
A . Are all variables properly declared?:
While important, this item does not directly address the issues related to loop and conditional logic completeness and correctness.
D . Are loop termination conditions obvious and invariably achievable?:
This item focuses on ensuring that loops will always terminate correctly, but does not address the completeness and correctness of the nested logic.
E . Are there any redundant or unused variables?:
This item helps identify variables that are declared but not used, which is not directly relevant to the correctness of the logic constructs.
The ISTQB CTAL-TTA syllabus and standard code review practices emphasize the importance of checking for proper nesting and completeness of logic constructs to ensure reliable and maintainable code.
Sources:
ISTQB-CTAL-TTA Syllabus
General knowledge on code review and checklist practices.
You are working on a project that is integrating code from multiple development groups. There have been numerous integration problems, particularly regarding reliability, error recovery and transactional integrity. You are now responsible for planning the performance efficiency testing for this product. There Is a strong feeling among the development managers that some parts of the code are weaker than others and will tend to exhibit problems during the performance efficiency testing. To identify these problematic areas as soon as possible, which type of testing should you do?
Stress testing is the most appropriate method for identifying weak areas in code that may cause performance issues, especially under conditions of extreme load or stress. This type of testing deliberately pushes the system beyond its normal operational capacity to see how it behaves under stress, which can help reveal vulnerabilities in error recovery and transactional integrity that are not apparent under normal conditions. Stress testing can provide early insights into potential failure points and help prioritize areas for improvement before full-scale deployment.
Which of the following is a reason for the Technical Test Analyst to take the time to prepare for a code review?
Preparing for a code review is essential for understanding how the specific item under review interacts with other system components. This preparation allows the reviewer to identify potential integration issues or dependencies that could affect system functionality or performance. Adequate preparation ensures that the review is thorough and considers the broader system context, which is critical for ensuring that the system operates cohesively and according to specifications.
You are working on a project that is integrating code from multiple development groups. There have been numerous integration problems, particularly regarding reliability, error recovery and transactional integrity. You are now responsible for planning the performance efficiency testing for this product. There Is a strong feeling among the development managers that some parts of the code are weaker than others and will tend to exhibit problems during the performance efficiency testing. To identify these problematic areas as soon as possible, which type of testing should you do?
Stress testing is the most appropriate method for identifying weak areas in code that may cause performance issues, especially under conditions of extreme load or stress. This type of testing deliberately pushes the system beyond its normal operational capacity to see how it behaves under stress, which can help reveal vulnerabilities in error recovery and transactional integrity that are not apparent under normal conditions. Stress testing can provide early insights into potential failure points and help prioritize areas for improvement before full-scale deployment.
Which of the following statements is true regarding fault seeding and fault injection tools?
Fault seeding and fault injection tools are used intentionally to introduce defects into a system or software to test the robustness of the test suite. This method helps in validating the effectiveness of the test processes and configurations by ensuring that the tests are capable of detecting and isolating inserted faults. It is a technique used to measure the quality of testing rather than debugging or performance compliance, which relates directly to the fundamental purpose of enhancing test coverage and the detection capability of the test suite .
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