Certified Business Analysis Professional (CBAP) Practice Test 2025 - Free CBAP Practice Questions and Study Guide

Non-functional requirements serve a crucial role in defining the quality attributes and design constraints associated with a solution. They focus on how the system performs its functions rather than what functions it performs. This can include aspects such as performance, reliability, security, usability, and scalability, which are essential for ensuring that the solution meets the needs of stakeholders and operates efficiently within the desired parameters.

While other options touch on relevant topics, they fall under specific circumstances that focus on subsets of non-functional requirements. For instance, preventing unauthorized access pertains specifically to security aspects, which is one type of non-functional requirement. Addressing educational needs is about user training and support, while describing growth relates more to scalability. However, the overarching function of non-functional requirements is to encapsulate these various quality attributes and constraints as a whole. Therefore, the emphasis on defining quality attributes and design constraints makes this the most comprehensive and correct answer.