[Apr 18, 2024] CTAL-TTA Exam Dumps - Try Best CTAL-TTA Exam Questions - TestBraindump
Verified CTAL-TTA exam dumps Q&As with Correct 47 Questions and Answers
NEW QUESTION # 24
A software company based in Spain that develops mobile applications expects many small updates in the future, e.g., due to changing configurations and customer feedback. The company also wants to focus on being able to change the software effectively and efficiently during initial development without introducing new defects.
Which maintainability sub-characteristic should be covered by the test approach during the initial development?
- A. Modifiability
- B. Re-usability
- C. Analysability
- D. Modularity
Answer: A
Explanation:
In the context of a software company in Spain developing mobile applications with an expectation of many small updates due to changing configurations and customer feedback, focusing on being able to change the software effectively and efficiently during initial development without introducing new defects is crucial. The maintainability sub-characteristic that should be covered by the test approach during the initial development is Modifiability.
Modifiability refers to the ease with which a software product can be modified to correct faults, improve performance or other attributes, or adapt to a changed environment. In a scenario where frequent and small updates are anticipated, ensuring that the software architecture and design support easy modification is vital. This not only aids in implementing changes more rapidly but also helps in maintaining the stability and integrity of the application, thereby preventing the introduction of new defects. The focus on modifiability ensures that the software remains responsive to customer feedback and evolving requirements without compromising on quality or performance.
NEW QUESTION # 25
Subject to testing is a software system (COTS) for Project Administration and Control (PACS). PACS is a multi-project system for controlling the project time, e.g., in terms of scheduling and tracking, and managing the productivity of projects, e.g., in terms of effort and deliverables.
During various interviews with stakeholders the following information was gathered:
* Using PACS is not business critical. There is no impact such as high financial losses or problems to the operational continuity of an organization. Its application is not critical since the software package does not support directly the operational, or the primary, business processes of an organization. It supports (project) management in the project planning and tracking process. Of course, it will be highly annoying for users if the system "goes down" from time to time. Although this does not have a high impact for the business process as a whole, the Mean Time Between Failures (MTBF) still needs to be at a good level to be successful in the market.
* Users of PACS typically have an academic educational level, but have no prior experience with this particular type of project management software. The system will be used by a large number of users within an organization.
* The system will be used on a regular basis, e.g., several times per day by project managers and several times per week by project employees. This means that the system will not be used very intensively, often only for some data input or an information request. Its usage is not considered to be very time-critical.
* The data is recorded on-line and real-time. The system is expected to run in multiple hardware environments in various network environments. It is also expected that changes in the operational environments will happen in the upcoming period that also need to be supported.
Based on the information provided by the stakeholder, which combination of non-functional quality characteristics should you propose to test as part of your test approach?
- A. Reliability and Portability
- B. Security and Reliability
- C. Reliability and Performance efficiency
- D. Performance efficiency and Portability
Answer: A
Explanation:
Given the stakeholder information provided:
Reliability is important because the system, while not business-critical, still needs a good MTBF to be successful in the market. This is directly mentioned in the stakeholder information.
Portability is essential as the system is expected to run in multiple hardware environments and various network environments, with changes anticipated in the operational environments.
Security is not highlighted as a concern, and performance efficiency, while generally important, is less critical as the system is not used intensively and is not time-critical. Therefore, reliability and portability are the most relevant non-functional quality characteristics to test in this scenario.
NEW QUESTION # 26
As a technical test analyst, you are involved in a risk analysis session using the Failure Mode and Effect Analysis technique. You are calculating risk priorities. Which of the following are the major factors in this exercise?
- A. Severity and priority
- B. Likelihood and impact
- C. Functionality, reliability, usability, maintainability, efficiency and portability
- D. Financial damage, frequency of use and external visibility
Answer: B
Explanation:
Failure Mode and Effect Analysis (FMEA) is a structured approach to identify and address potential failures in a system, product, process, or service. The major factors involved in calculating risk priorities in FMEA are typically the severity of the potential failure, its likelihood of occurrence, and the ability to detect it. These factors are usually combined to form a Risk Priority Number (RPN) for each potential failure mode identified. However, the specific factors mentioned in the options like functionality, reliability, usability, maintainability, efficiency, and portability are quality characteristics that could be considered in an FMEA analysis but are not directly used for calculating risk priorities. Likewise, financial damage, frequency of use, and external visibility might influence the severity or impact of a failure, but they are not standard factors in calculating risk priorities in the context of FMEA. Therefore, the most relevant factors for calculating risk priorities in an FMEA context would typically be the likelihood of the failure occurring and its potential impact, which aligns with option C: Likelihood and impact.
It's important to note that while these explanations are based on general principles and practices related to fault seeding and FMEA, the specifics might vary slightly in different contexts or with different methodologies.
NEW QUESTION # 27
You are asked to provide a practical and pragmatic testing solution for a commercial system where the main user interface is via the Internet. It is critical that the company's existing good name and market profile are not damaged in any way. Time to market is not a critical issue when appropriate testing solutions are identified to mitigate business risks.
A product risk assessment has revealed the following product risk:
* Abnormal application termination due to connection failure of the main interface.
Which of the following is the appropriate test type to address this risk?
- A. Portability testing
- B. Operability testing
- C. Reliability testing
- D. Performance efficiency testing
Answer: C
Explanation:
Reliability testing is the process of checking whether the software consistently performs according to its specifications. For a commercial system with a critical internet-based user interface, ensuring that the application can handle connection failures without abnormal terminations is essential. Reliability testing would include testing the system's ability to recover from failures and continue operating, which directly addresses the risk identified.
NEW QUESTION # 28
A component has been analysed during a risk-assessment and rated as highly critical. Which of the following white-box test techniques provides the highest level of coverage and could therefore be used to test this component?
- A. Multiple condition testing
- B. Decision testing
- C. Modified condition/decision testing
- D. Statement testing
Answer: C
Explanation:
Modified condition/decision testing (MC/DC) provides a higher level of coverage compared to other white-box testing techniques because it requires each condition in a decision to be shown to independently affect that decision's outcome. It is more rigorous than both decision testing (which only requires each decision's possible outcomes to be tested) and statement testing (which requires only each executable statement to be executed). Therefore, for a highly critical component, MC/DC is more appropriate as it ensures a more thorough assessment of the logic in the software component.
NEW QUESTION # 29
Which of the following defect types is NOT an example of a defect type typically found with API testing?
- A. Loss of transactions
- B. Data handling issues
- C. Timing problems
- D. High architectural structural complexity
Answer: D
Explanation:
In the context of API testing, the defect types generally found are related to the specific interactions with the API, such as issues with data formatting, handling, validation, and the sequencing or timing of API calls. Architectural structural complexity is not typically a defect that would be identified at the API testing level. API tests are concerned with the interface and immediate integration points, not the overarching system architecture, which would be more relevant to design or system-level testing.
NEW QUESTION # 30
Which of the following statements is TRUE regarding tools that support component testing and the build process?
- A. Component testing tools are typically specific to the programming language and may be used to automate unit testing.
- B. Component testing tools are the basis for a continuous integration environment.
- C. Component testing and build automation tools are only used by developers.
- D. Build automations tools facilitate manual testing at a low level by allowing the change of variables values during test execution.
Answer: A
Explanation:
Component testing tools, which are often specific to a programming language, are used to automate unit tests (answer C). These tools help to validate the functionality of individual components or units of code in isolation from the rest of the application. While build automation tools are indeed used by developers and are related to continuous integration (answers A and D), and they can facilitate testing at various levels (answer B), component testing tools' primary purpose is to support the testing of individual components, often through automated unit tests, which can be specific to the language in which the components are written.
NEW QUESTION # 31
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. Number of Lines of Code (LOG)
- B. Number of Function Calls
- C. Comment Frequency
- D. Mean Time Between Failures
Answer: D
NEW QUESTION # 32
Consider the following control flow graph:
The control flow represents a software component of a car navigation system. Within the project the maximum cyclomatic complexity to be allowed is set at 5.
Which of the following statements is correct?
- A. No defect needs to be reported since the cyclomatic complexity of the component is calculated at 5.
- B. A defect needs to be reported since the cyclomatic complexity of the component is calculated at 6.
- C. No defect needs to be reported since the cyclomatic complexity of the component is calculated at 3.
- D. No defect needs to be reported since the cyclomatic complexity of the component is calculated at 4
Answer: B
Explanation:
Cyclomatic complexity is a measure of the number of linearly-independent paths through a program's source code, which is often used as a measure of the complexity of a program. The control flow graph provided represents the logic of a software component and has more than 5 nodes with decision points, indicating that the complexity would exceed the maximum allowed value of 5. The calculation for cyclomatic complexity is V(G) = E - N + 2P, where E is the number of edges, N is the number of nodes, and P is the number of connected components. In this case, the calculated cyclomatic complexity exceeds the allowed threshold, thus a defect should be reported.
NEW QUESTION # 33
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?
- A. Variable 'D" is defined but subsequently not used.
- B. The program does not contain any comments.
- C. It is recommended to use a variable instead of the hard-coded print results "Win" and *Loose".
- D. Variable 'A" is not assigned a value before using it.
Answer: A
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.
NEW QUESTION # 34
Which of the following is a valid reason for including security testing in a test approach?
- A. To evaluate the ability of a system to handle peak loads at or beyond the limits of its anticipated or specified workloads
- B. To provide measurements from which an overall level of availability can be obtained.
- C. Software changes will be frequent after it enters production.
- D. There is a threat of unauthorized copying of applications or data.
Answer: D
Explanation:
Including security testing in a test approach is valid when there are concerns about unauthorized access or activities, such as the threat of unauthorized copying of applications or data (option A). This type of testing aims to uncover vulnerabilities that could be exploited to compromise the confidentiality, integrity, or availability of the system. The other options listed-availability measurements (option B), system's peak load handling (option C), and frequent software changes (option D)-relate to different aspects of testing, such as reliability, performance, and maintainability, which are not directly associated with security testing.
NEW QUESTION # 35
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?
- A. 100% statement coverage, 100% decision coverage and 100% multiple condition coverage
- B. 100% statement coverage
- C. 100% statement coverage and 100% decision coverage
- D. 100% statement coverage, 100% decision coverage and 100% MC/DC coverage
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.
NEW QUESTION # 36
Which of the following statements about fault seeding tools is correct?
- A. Fault seeding tools insert defects into the source code to check the level of maintainability of the software.
- B. Fault seeding tools insert defects into the source code to check the effectiveness of testing.
- C. Fault seeding tools insert defects into the source code to support the application of specification-based test design techniques.
- D. Fault seeding tools insert defects into the source code to test the input checking capabilities of the software.
Answer: B
Explanation:
Fault seeding is a method used to evaluate the effectiveness of a testing process. Tools designed for fault seeding intentionally insert known defects into the source code, which are then supposed to be discovered during testing. The main purpose is not to check the input checking capabilities, support specification-based test design techniques, or assess maintainability of the software, but rather to gauge how well the testing process can identify and capture defects. By comparing the number of seeded faults that are found against the total number of faults inserted, test teams can get an insight into the effectiveness of their testing strategies and coverage. This method helps in understanding the detection capabilities of testing efforts and in identifying potential areas for improvement in test processes.
NEW QUESTION # 37
Consider the following specification:
If you are flying with an economy ticket, there is a possibility that you may get upgraded to business class, especially if you hold a gold card in the airline's frequent flier program. If you don't hold a gold card, there is a possibility that you will get 'bumped' off the flight if it is full when you check in late.
This is shown in the control flow graph below. Note that each box (i.e., statement, decision) has been numbered.
Three tests have been run:
Test 1: Gold card holder who gets upgraded to business class
Test 2: Non-gold card holder who stays in economy
Test 3: A person who is bumped from the flight
What is the level of decision coverage achieved by these three tests?
- A. 67%
- B. 80%
- C. 60%
- D. 75%
Answer: A
Explanation:
The control flow graph provided illustrates the decision points for an airline's upgrade and boarding process. Decision coverage is a measure of the percentage of decision points executed during testing:
Test 1 covers the decision points: Gold card? (Yes) and Business full? (No).
Test 2 covers: Gold card? (No) and Economy full? (No).
Test 3 covers the decision that leads to being bumped from the flight, which is Economy full? (Yes) and Business full? (Yes).
From the given tests, the decision points for Gold card? (No) and Business full? (No) are not tested, leaving us with 4 out of 6 decision points covered, which is approximately 67% decision coverage.
NEW QUESTION # 38
Which of the following statements BEST describes how tools support model-based testing?
- A. Large sets of test cases are generated to provide full code coverage.
- B. Random sets of threads of execution are generated as test cases.
- C. Finite state machines are used to describe the intended execution-time behavior of a software-controlled system.
- D. An engine is provided that allows the user to execute the model.
Answer: C
Explanation:
Model-based testing tools support the creation and execution of tests based on models of the system under test. Finite state machines (FSMs) are often used in model-based testing to describe the expected behavior of a system during execution. FSMs help in defining the states of the system and the transitions between these states based on events, which can then be used to generate test cases that validate the system's behavior against the model.
NEW QUESTION # 39
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?
- A. Maintainability testing
- B. Time-behaviour testing
- C. Portability testing
- D. Security testing
Answer: B
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.
NEW QUESTION # 40
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. Number of Lines of Code (LOG)
- B. Number of Function Calls
- C. Comment Frequency
- D. Mean Time Between Failures
Answer: D
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 # 41
Assume you are involved in testing a Health Insurance Calculation system.
At the main screen one can enter information for a new client. The information to be provided consists of last name, first name and date of birth. After confirmation of the information, the system checks the age of the potential new client and calculates a proposed premium.
The system also has the option to request information for an existing client, using the client's ID number.
A keyword-driven automation approach is being used to automate most of the regression testing.
Based on the information provided, which TWO of the options provided would be the MOST LIKELY keywords for this application? (Choose two.)
- A. Select_Client
- B. Print_Premium
- C. Remove_Client
- D. Enter_Client
- E. Exclude_Client
Answer: A,D
Explanation:
Considering the functionalities described for the Health Insurance Calculation system, the keywords would represent the main actions that can be performed in the system. 'Enter_Client' would be a keyword for entering new client information, which is a primary feature of the system as described. 'Select_Client' would be used to retrieve information for an existing client using the client's ID number, which is another main functionality. Other options such as 'Remove_Client', 'Print_Premium', and 'Exclude_Client' are not explicitly mentioned in the provided system functionalities, therefore, 'Enter_Client' and 'Select_Client' are the most likely keywords for automation.
NEW QUESTION # 42
A major Caribbean bank typically develops their own banking software using an Agile methodology. However, for some specific components COTS software is acquired and used. The bank does not want to create a dependency on any external COTS supplier.
As part of the test approach, portability testing will be performed. Which portability sub-characteristic is especially relevant for the Caribbean bank?
- A. Co-existence
- B. Adaptability
- C. In stall ability
- D. Replaceability
Answer: D
Explanation:
Portability testing is concerned with how well software can be transferred from one environment to another. In the context of a bank using COTS (Commercial Off-The-Shelf) software, the sub-characteristic of replaceability becomes particularly relevant. This is because the bank does not want to create a dependency on any external COTS supplier, meaning it should be able to replace the software with another product without significant effort or operational disruption. Replaceability ensures that if needed, the bank can switch to different software, thereby mitigating the risk of supplier dependency.
NEW QUESTION # 43
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