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100% Pass Latest CTAL-TTA_Syll19_4.0 - ISTQB Certified Tester Advanced Level - Technical Test Analyst (V4.0) Valid Mock Exam

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ISQI ISTQB Certified Tester Advanced Level - Technical Test Analyst (V4.0) Sample Questions (Q17-Q22):

NEW QUESTION # 17
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. Modified condition/decision testing
C. Decision testing
D. Statement testing

Answer: B

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 # 18
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. Security testing
B. Maintainability testing
C. Time-behaviour testing
D. Portability testing

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.

NEW QUESTION # 19
A product risk assessment has revealed the following product risks:
* lack of usability requirements
* security during on-line transactions
* perceived performance of the system and response time from the user interface
* a required availability of almost 100%
To address the 4th risk, which of the following quality characteristics for technical testing should be part of the test approach?

A. Compatibility
B. Adaptability
C. Portability
D. Reliability

Answer: D

Explanation:
To address the product risk of requiring an availability of almost 100%, the quality characteristic of reliability should be part of the test approach. Reliability testing focuses on the ability of the system to perform under expected conditions for a specified period of time. It is essential for systems that need to be operational continuously or near-continuously. This characteristic encompasses the system's uptime, fault tolerance, recoverability, and the ability to perform under anticipated conditions, all of which are relevant to maintaining high availability.

NEW QUESTION # 20
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 provide run-time information on the state of the software code, e.g., unassigned pointers and the use and de-allocation of memory.
D. Both are used to reduce the costs of test environments by replacing real devices.

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 # 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. Performance Efficiency
B. Portability
C. Usability
D. Maintainability

Answer: D

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
......

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