Download Certified Tester Advanced Level Technical Test Analyst.CTAL-TTA.CertDumps.2024-03-29.29q.vcex

Vendor: ISTQB
Exam Code: CTAL-TTA
Exam Name: Certified Tester Advanced Level Technical Test Analyst
Date: Mar 29, 2024
File Size: 463 KB
Downloads: 7

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Demo Questions

Question 1
Which of the following statements best captures the difference between data-driven and keyword-driven test automation?
  1. Data-driven test automation extends keyword-driven automation by defining data corresponding to business processes.
  2. Keyword-driven test automation extends data-driven automation by defining keywords corresponding to business processes.
  3. Data-driven test automation is more maintainable than keyword-driven test automation.
  4. Keyword-driven test automation is easier to develop than data-driven test automation.
Correct answer: B
Explanation:
Keyword-driven test automation is a framework where test cases are written using keywords that represent the actions or tests to be performed on the system. This is an extension of data-driven test automation, which focuses on separating test scripts from the test data, allowing the same test script to be run with various sets of data. Keyword-driven test automation further abstracts the process by allowing tests to be written in a more human-readable form that corresponds to business processes. This approach can improve maintainability and readability of test cases, making them easier to understand and modify. It's not necessarily the case that one is more maintainable or easier to develop than the other (Options C and D); rather, they serve different purposes in test automation strategy.
Keyword-driven test automation is a framework where test cases are written using keywords that represent the actions or tests to be performed on the system. This is an extension of data-driven test automation, which focuses on separating test scripts from the test data, allowing the same test script to be run with various sets of data. Keyword-driven test automation further abstracts the process by allowing tests to be written in a more human-readable form that corresponds to business processes. This approach can improve maintainability and readability of test cases, making them easier to understand and modify. It's not necessarily the case that one is more maintainable or easier to develop than the other (Options C and D); rather, they serve different purposes in test automation strategy.
Question 2
A medical company has performed a safety criticality analysis using the IEC61508 standard. The software components to be developed have been categorized by Safety Integrity Level (SIL). Most components have been rated at SIL 1 or 2, and a few components at SIL 4.
After some discussions with the QA manager, the project has decided to adhere to the recommendations for test coverage provided by the IEC61508 standard.
Which level and type of test coverage should at least be used for the components rated at Safety Integrity Level (SIL) 2?
  1. 100% statement coverage, 100% decision coverage and 100% multiple condition coverage
  2. 100% statement coverage, 100% decision coverage and 100% MC/DC coverage
  3. 100% statement coverage and 100% decision coverage
  4. 100% statement coverage
Correct answer: C
Explanation:
In the context of software testing, different safety integrity levels (SIL) require different levels of rigor in testing. According to the IEC61508 standard, for software components rated at SIL 2, achieving 100% statement coverage and 100% decision coverage is recommended. Statement coverage ensures that every line of code is executed at least once during testing, while decision coverage ensures that every decision in the code (e.g., every branch of an IF statement) is executed on both the true and false sides. These coverage criteria ensure a thorough testing of the software components to validate that they behave correctly in all circumstances. Multiple condition coverage and MC/DC coverage (Options A and B) are more rigorous and typically required for higher SIL levels, such as SIL 4.
In the context of software testing, different safety integrity levels (SIL) require different levels of rigor in testing. According to the IEC61508 standard, for software components rated at SIL 2, achieving 100% statement coverage and 100% decision coverage is recommended. Statement coverage ensures that every line of code is executed at least once during testing, while decision coverage ensures that every decision in the code (e.g., every branch of an IF statement) is executed on both the true and false sides. These coverage criteria ensure a thorough testing of the software components to validate that they behave correctly in all circumstances. Multiple condition coverage and MC/DC coverage (Options A and B) are more rigorous and typically required for higher SIL levels, such as SIL 4.
Question 3
Consider the pseudo code provided below:
 
Given the following tests, what additional test(s) (if any) would be needed in order to achieve 100% statement coverage, with the minimum number of tests?
Test 1: A = 7, B = 7, Expected output: 7
Test 2: A = 7, B = 5, Expected output: 5
  1. A=6, B=12, Expected output: Bingo! and A=7, B=9, Expected output: 7
  2. A=6, B=12, Expected output: Bingo!
  3. A=7, B=9, Expected output: 7
  4. No additional test cases are needed to achieve 100% statement coverage.
Correct answer: D
Explanation:
100% statement coverage means that every line of code is executed at least once during testing. Based on the provided pseudo-code and the test cases given:Test 1 executes the MIN = B statement when A and B are equal.Test 2 executes the MIN = A statement and skips the inner IF since B is not equal to 2*A.All statements within the code have been executed by these two tests, hence no additional test cases are needed to achieve 100% statement coverage.
100% statement coverage means that every line of code is executed at least once during testing. Based on the provided pseudo-code and the test cases given:
Test 1 executes the MIN = B statement when A and B are equal.
Test 2 executes the MIN = A statement and skips the inner IF since B is not equal to 2*A.
All statements within the code have been executed by these two tests, hence no additional test cases are needed to achieve 100% statement coverage.
Question 4
Below is the pseudo-code for the Win program:
 
The bingo program contains a data flow anomaly. Which data flow anomaly can be found in this program?
  1. Variable 'A' is not assigned a value before using it.
  2. Variable 'D' is defined but subsequently not used.
  3. The program does not contain any comments.
  4. It is recommended to use a variable instead of the hard-coded print results 'Win' and *Loose'.
Correct answer: B
Explanation:
The pseudo-code provided for the 'Win' program reads in variables A, B, C, and D. However, only variables A, B, and C are used in the conditional statements to determine if the output will be 'Win' or 'Loose'. Variable 'D' is never used after it is read, which is a classic example of a 'defined but not used' data flow anomaly. This means that while there is an instruction to read a value into variable 'D', there is no subsequent use of this variable in the program's logic or output.
The pseudo-code provided for the 'Win' program reads in variables A, B, C, and D. However, only variables A, B, and C are used in the conditional statements to determine if the output will be 'Win' or 'Loose'. Variable 'D' is never used after it is read, which is a classic example of a 'defined but not used' data flow anomaly. This means that while there is an instruction to read a value into variable 'D', there is no subsequent use of this variable in the program's logic or output.
Question 5
At which test level would performance efficiency testing most likely be performed?
  1. Component testing
  2. Integration testing
  3. System testing
  4. User acceptance testing
Correct answer: C
Explanation:
Performance efficiency testing is most commonly associated with system testing. This is the level at which the complete, integrated system is evaluated, and it is typically where performance, load, and stress testing are conducted to assess the system's behavior under various conditions and loads. Performance efficiency testing at this level helps to ensure that the system meets the necessary performance criteria as a whole.
Performance efficiency testing is most commonly associated with system testing. This is the level at which the complete, integrated system is evaluated, and it is typically where performance, load, and stress testing are conducted to assess the system's behavior under various conditions and loads. Performance efficiency testing at this level helps to ensure that the system meets the necessary performance criteria as a whole.
Question 6
There are multiple activities the Technical Test Analyst performs regarding test automation. Which of the following activities is a typical test automation activity that the Technical Test Analyst will perform?
  1. Define the business process keywords and related actions.
  2. Execute the test cases and analyze any failures that may occur.
  3. Train the Test Analyst and Business Analyst to use and supply data for the test scripts.
  4. Decide regarding a test automation project based on a business case.
Correct answer: B
Explanation:
A Technical Test Analyst is primarily involved in the technical aspects of test preparation and execution. One of their typical activities includes the execution of test cases, particularly those that are automated, and the subsequent analysis of any test failures to identify defects and issues. This activity is more technical than defining business processes or training other analysts, and while making decisions based on a business case may be part of their role, it is not an activity directly related to test automation.
A Technical Test Analyst is primarily involved in the technical aspects of test preparation and execution. One of their typical activities includes the execution of test cases, particularly those that are automated, and the subsequent analysis of any test failures to identify defects and issues. This activity is more technical than defining business processes or training other analysts, and while making decisions based on a business case may be part of their role, it is not an activity directly related to test automation.
Question 7
Consider the pseudo code provided below:
 
Which of the following options provides a set of test cases that achieves 100% decision coverage for this code fragment, with the minimum number of test cases?
Assume that in the options, each of the three numbers in parenthesis represent the inputs for a test case, where the first number represents variable ''a'', the second number represents variable ''b'', and the third number represents variable ''c''.
  1. (5. 3,2)
  2. (5. 3, 2); (6, 4, 2); (5, 4, 0)
  3. (5. 4, 0); (3, 2, 5); (4, 5, 0)
  4. (4,5. 0); {5, 4, 5)
Correct answer: B
Explanation:
To achieve 100% decision coverage with the minimum number of test cases, we need to ensure that every branch of the decision is taken at least once. For the code provided:The first condition (a>b) is true for the first two test cases and false for the third.The second condition (b>c) is true for the first test case, false for the second, and does not matter for the third since the first condition is false.Therefore, with these three test cases, we cover all possible outcomes of the decision, ensuring 100% decision coverage.
To achieve 100% decision coverage with the minimum number of test cases, we need to ensure that every branch of the decision is taken at least once. For the code provided:
The first condition (a>b) is true for the first two test cases and false for the third.
The second condition (b>c) is true for the first test case, false for the second, and does not matter for the third since the first condition is false.
Therefore, with these three test cases, we cover all possible outcomes of the decision, ensuring 100% decision coverage.
Question 8
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?
  1. Number of Lines of Code (LOG)
  2. Number of Function Calls
  3. Mean Time Between Failures
  4. Comment Frequency
Correct answer: C
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.
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.
Question 9
You are involved in testing a system in the medical domain. Testing needs to comply with the FDA requirements and is rated as being safety critical. A product risk assessment has been performed and various mitigation actions have been identified. Reliability testing is one of the test types that needs to be performed throughout the development lifecycle.
Based on the information provided, which of the following activities would need to be addressed in the test plan?
  1. Perform a vulnerability scan.
  2. Design and execution of specific tests that evaluate the software's tolerance to faults in terms of handling unexpected input values.
  3. Design and execution of test cases for scalability.
  4. Testing whether the installation/de-installation can be completed.
Correct answer: B
Explanation:
In the context of safety-critical systems, particularly in the medical domain, reliability is of utmost importance. For such systems, it is crucial to ensure that the software can handle unexpected input values and continue to operate without failure. This is essential to ensure patient safety and compliance with FDA requirements. Vulnerability scans (option A) are more related to security testing, whereas scalability (option C) and installation/deinstallation (option D) are important but not specifically related to the reliability and safety criticality of the system in the medical domain.
In the context of safety-critical systems, particularly in the medical domain, reliability is of utmost importance. For such systems, it is crucial to ensure that the software can handle unexpected input values and continue to operate without failure. This is essential to ensure patient safety and compliance with FDA requirements. Vulnerability scans (option A) are more related to security testing, whereas scalability (option C) and installation/deinstallation (option D) are important but not specifically related to the reliability and safety criticality of the system in the medical domain.
Question 10
The following characteristics were identified during an early product risk-assessment for a software system:
  • the software system needs to manage synchronization between various processes
  • microcontrollers will be used that will limit product performance
  • the hardware that will be used will make use of timeslots
  • the number of tasks supported in parallel by the software system is large and are often highly complex.
Based on the information provided, which of the following non-functional test types is MOST appropriate to be performed?
  1. Maintainability testing
  2. Security testing
  3. Time-behaviour testing
  4. Portability testing
Correct answer: C
Explanation:
The characteristics listed in the question point towards the need to manage synchronization between processes and make efficient use of limited hardware resources, such as microcontrollers and timeslots. Additionally, the complexity and concurrency of tasks highlight the importance of the software's performance over time. Time-behaviour testing is the most appropriate non-functional test type to perform in this scenario as it focuses on evaluating the timing aspects of the system, such as response times, processing times, and throughput rates. It ensures that the system meets its time-related requirements, which is critical for systems reliant on synchronization and limited by hardware performance constraints.
The characteristics listed in the question point towards the need to manage synchronization between processes and make efficient use of limited hardware resources, such as microcontrollers and timeslots. Additionally, the complexity and concurrency of tasks highlight the importance of the software's performance over time. Time-behaviour testing is the most appropriate non-functional test type to perform in this scenario as it focuses on evaluating the timing aspects of the system, such as response times, processing times, and throughput rates. It ensures that the system meets its time-related requirements, which is critical for systems reliant on synchronization and limited by hardware performance constraints.
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