IREB Fundamentals Practice Exam 2025 – Complete Study Resource

Question: 1 / 400

Which aspect is least likely to be considered a result of quality of service requirements?

Influence on user satisfaction

Direct impact on functionality

Effect on system performance

Regulation of software lifecycle

Focusing on the influence of quality of service (QoS) requirements, the choice that is least likely to be considered a result of these requirements is related to the regulation of the software lifecycle. Quality of service requirements primarily pertain to the non-functional aspects of a system, such as how well the system performs under certain conditions, including responsiveness, reliability, and user satisfaction.

In contrast, the software lifecycle encompasses processes that govern the development and maintenance of software, which may include aspects like project management, software development methodologies, and maintenance procedures. While QoS requirements can influence the practices employed within the software lifecycle, they do not directly regulate it. Instead, they guide the expectations of stakeholders concerning how the system should perform, impacting user satisfaction and system performance directly.

The other choices—user satisfaction, direct impact on functionality, and system performance—are all closely aligned with the implications of quality of service. User satisfaction is directly influenced by QoS, as better performance and reliability can lead to happier users. Direct impact on functionality refers to how QoS can ensure that the system functions as intended under defined conditions. Lastly, the effect on system performance is a critical aspect of QoS, as it determines how well the system handles load, response times

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