Ace the iSACA Cybersecurity Fundamentals 2025 – Unleash Your Cyber Warrior Potential!

The best description of the functional requirements in the Software Development Life Cycle (SDLC) is that they articulate what the system should do according to the business needs. Functional requirements are detailed statements of the capabilities and behaviors that a system must possess to support its users and fulfill the objectives of the organization. They define specific actions, tasks, or functions that the system must perform, directly linking to organizational goals and user expectations.

The other choices highlight different aspects of system design and implementation. For example, risks associated with system deployment focus on potential issues that may arise during the rollout of the software rather than the features the system should provide. Technical specifications outline the details of how the system will achieve its functionalities but do not describe the requirements themselves. Lastly, methods for user authentication pertain specifically to security measures and access control, which are only a small part of the overall functional requirements that encompass much broader capabilities that the system must deliver.