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ISTQB CTAL-TTA Exam Questions
- Topic 1: Risk-Based Testing for Technical Test Analysts: Its focal point is risk-based testing. It delves into assessment, risk identification, and mitigation.
- Topic 2: White-Box Test Techniques: This topic deals with different white-box testing methodologies, including decision testing, modified condition/decision testing, statement testing, and API testing. Moreover, it focuses on basic path testing, API testing, and choosing an appropriate white-box test technique as per the project situation.
- Topic 3: Static and Dynamic Analysis: In this topic, questions about importance of both static and dynamic analysis, control flow analysis, memory leaks, performance efficiency analysis, and data flow analysis may appear.
- Topic 4: Quality Characteristics for Technical Testing: This exam topic focuses on different quality features relevant to technical testing. It discusses portability, security, maintainability, and compatibility testing.
- Topic 5: Reviews: It sheds light on the role of Technical Test Analysts in reviews. The topic also focuses on the usage of checklists for different architectural and code reviews.
- Topic 6: Test Tools and Automation: This topic defines test automation projects. It also explains how to select automation approaches. Moreover, it explains specific test tools.
Free ISTQB CTAL-TTA Exam Actual Questions
Note: Premium Questions for CTAL-TTA were last updated On Mar. 20, 2025 (see below)
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?
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.
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.
An enhancement to a Social Media application allows for the creation of new Groups. Any number of existing application members can be added to a
Group. An attempt to add a non-existing member of the application to a Group will result in an error. Members can also be removed from an existing Group.
Existing Groups can also be deleted but only if there are no current members attached to it.
Which keyword-driven input table provides an adequate test of this enhancement?
A.
B.
C.
D.
The keyword-driven input table in Option B covers all the necessary scenarios: creating groups, adding members (including handling errors for non-existing members), removing members, and deleting groups only when empty.
This aligns with the functionalities specified in the enhancement description for the social media application.
The ISTQB CTAL-TTA syllabus covers the importance of comprehensive test coverage in keyword-driven testing.
General knowledge on test case design and keyword-driven testing practices.
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.
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