[2024] Pass Key features of CTAL-TTA_Syll19_4.0 Course with Updated 47 Questions
CTAL-TTA_Syll19_4.0 Sample Practice Exam Questions 2024 Updated Verified
NEW QUESTION # 16
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
- A. A=6, B=12, Expected output: Bingo! and A=7, B=9, Expected output: 7
- B. A=6, B=12, Expected output: Bingo!
- C. A=7, B=9, Expected output: 7
- D. No additional test cases are needed to achieve 100% statement coverage.
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.
NEW QUESTION # 17
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. 80%
- B. 60%
- C. 75%
- D. 67%
Answer: D
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 # 18
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. Variable "AB is defined but subsequently not used.
- B. The hard-coded value '2" should not be used.
- C. An invalid value is assigned to variable "B".
- 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 # 19
At which test level would reliability testing most likely be performed?
- A. Static testing
- B. Component testing
- C. Functional acceptance testing
- D. System testing
Answer: D
Explanation:
Reliability testing is aimed at verifying the software's ability to function under expected conditions for a specified period of time. It is typically conducted during system testing, where the software is tested in its entirety to ensure that all components work together as expected in an environment that closely simulates the production environment. Reliability testing is not typically associated with static testing, component testing, or functional acceptance testing, as these levels of testing do not address the overall behavior of the system over time.
NEW QUESTION # 20
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
- B. 100% statement coverage, 100% decision coverage and 100% MC/DC coverage
- C. 100% statement coverage, 100% decision coverage and 100% multiple condition coverage
- D. 100% statement coverage and 100% decision coverage
Answer: D
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 # 21
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. Portability
- B. Usability
- 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 # 22
Consider the code fragment provided below:
How many test cases are needed for the code fragment lines 26 - 37 to achieve 100% modified condition/decision coverage?
- A. 6 test cases
- B. 2 test cases
- C. 8 test cases
- D. 4 test cases
Answer: D
Explanation:
Modified condition/decision coverage (MC/DC) requires each condition in a decision to be shown to independently affect the decision's outcome. For the code fragment provided, we have three independent conditions that need to be evaluated both as true and false. The minimum number of test cases needed to satisfy MC/DC for three conditions is four, which would allow each condition to be shown to independently affect the outcome of the decision.
NEW QUESTION # 23
Which of the following defect types is NOT an example of a defect type typically found with API testing?
- A. High architectural structural complexity
- B. Timing problems
- C. Data handling issues
- D. Loss of transactions
Answer: A
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 # 24
Which of the following does NOT contribute to a more effective review preparation by the Technical Test Analyst?
- A. The usage of review checklists.
- B. Ensure that participants spend enough time during preparation, e.g.. by managing checking rate (number of pages checked per hour during review preparation).
- C. Managing logging rate (number of defects logged per minute during the meeting).
- D. Review training for the Technical Test Analyst.
Answer: C
Explanation:
An effective review preparation by a Technical Test Analyst includes ensuring that participants are well-prepared and that they spend enough time on preparation, which can be managed by checking the rate (option A). The use of review checklists (option C) and providing review training (option D) are also methods that contribute to more effective review preparation. However, managing the logging rate (option B), or the number of defects logged per minute during the meeting, is not related to the preparation phase but rather to the defect detection and logging phase during the actual review meeting. It is not a preparation activity but a review execution activity.
NEW QUESTION # 25
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 'A" is not assigned a value before using it.
- B. Variable 'D" is defined but subsequently not used.
- C. The program does not contain any comments.
- D. It is recommended to use a variable instead of the hard-coded print results "Win" and *Loose".
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.
NEW QUESTION # 26
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. Build automations tools facilitate manual testing at a low level by allowing the change of variables values during test execution.
- D. Component testing and build automation tools are only used by developers.
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 # 27
You are working on project where re-use of software is an objective. You are involved in the project as a Technical Test Analyst and have been given the task to develop a checklist for code reviews.
Which question from the list below should you implement as part of the code review checklist?
- A. Are all variables defined with meaningful, consistent and clear names?
- B. Can each item be implemented with the techniques, tools, and resources available?
- C. Are all modules, data, and interfaces uniquely identified?
- D. Is it possible during acceptance testing to verity whether the item has been satisfied?
Answer: C
Explanation:
For a project where the reuse of software components is a key objective, it is essential to ensure that all modules, data, and interfaces are uniquely identified. This facilitates the tracking, maintenance, and reuse of these components in different parts of the software or in other projects. Unique identification helps in preventing confusion and conflicts that may arise due to the reuse of components that have the same name but different functionalities or interfaces.
NEW QUESTION # 28
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. Financial damage, frequency of use and external visibility
- B. Likelihood and impact
- C. Functionality, reliability, usability, maintainability, efficiency and portability
- D. Severity and priority
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 # 29
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?
- A. Perform a vulnerability scan.
- B. Design and execution of specific tests that evaluate the software's tolerance to faults in terms of handling unexpected input values.
- C. Design and execution of test cases for scalability.
- D. Testing whether the installation/de-installation can be completed.
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/de-installation (option D) are important but not specifically related to the reliability and safety criticality of the system in the medical domain.
NEW QUESTION # 30
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 3.
- B. No defect needs to be reported since the cyclomatic complexity of the component is calculated at 5.
- C. No defect needs to be reported since the cyclomatic complexity of the component is calculated at 4
- D. A defect needs to be reported since the cyclomatic complexity of the component is calculated at 6.
Answer: D
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 # 31
Which of the following defect types is NOT an example of a defect type typically found with API testing?
- A. High architectural structural complexity
- B. Timing problems
- C. Data handling issues
- D. Loss of transactions
Answer: A
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 # 32
Which of the following statements is TRUE regarding tools that support component testing and the build process?
- A. Both provide an environment for unit testing in which a component can be tested in isolation with suitable stubs and drivers.
- B. Both are used to examine source code before a program is executed. This is done by analysing a section of code against a set (or multiple sets) of coding rules.
- C. Both are used to reduce the costs of test environments by replacing real devices.
- D. Both provide run-time information on the state of the software code, e.g., unassigned pointers and the use and de-allocation of memory.
Answer: A
Explanation:
Tools that support component testing and the build process are designed to provide a controlled environment where individual units or components of the software can be tested in isolation. This is typically done using stubs, which simulate the behavior of missing components, and drivers, which simulate the behavior of a user or calling program. This isolated environment is essential for unit testing because it allows testers to find defects within the boundaries of a single component before integrating it into the larger system.
NEW QUESTION # 33
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