System and functional testing typically includes which of the following characteristics?

• A. addresses cultural impacts of new processes
• B. does not include security testing of databases
• C. includes multiple subsystems and phases of testing
• D. is done in an ad hoc fashion as staff are available

Answer: (C)

Testing the whole system means validating that the complete, integrated product behaves correctly when all components interact. Because a real system is built from multiple subsystems, you must exercise interfaces and end-to-end workflows that cross those subsystems, and you do this across several testing phases (such as functional and integration tests, followed by system, regression, and acceptance testing). This broad, structured approach is what makes system and functional testing capable of catching issues that only appear when parts work together in realistic scenarios.

Cultural impacts aren’t the focus of this testing, and security considerations are typically included as part of the system’s testing scope rather than being excluded. Also, testing isn’t done in an ad hoc fashion; it relies on planned test cases, environments, and criteria to ensure proper coverage and traceability.