What is the lifecycle called that includes planning, analysis, design, testing, and implementation?

• A. Schema
• B. Security Policy
• C. Security Event
• D. System Development Life Cycle

Answer: (D)

The System Development Life Cycle is the organized process for creating or updating information systems, guiding work from planning and requirements gathering through analysis, design, testing, and eventual implementation. This lifecycle provides a structured path to ensure the solution meets needs, is thoroughly tested, and is deployed in a controlled way, with ongoing operation and maintenance afterward. The other terms refer to different concepts: a schema is the structure of a database, a security policy outlines rules for protecting information, and a security event is an observable security-related occurrence. None describe the full, end-to-end process of building or changing a system, so the System Development Life Cycle is the appropriate term.