One change control function that is required in client/server environments, but is not required in...

Client/server environments often distribute application components across multiple servers, workstations, or network locations. A key change control requirement is ensuring that program versions are synchronized across the network so incompatible versions do not operate simultaneously. Version mismatch can cause processing errors, data corruption, security weaknesses, or failed interfaces. Emergency move procedures, user testing, and controlled migration from test to production are important in both client/server and mainframe environments. They are not unique to client/server architecture. Internal auditors reviewing change management should verify version control, release management, configuration baselines, rollback procedures, and documentation of distributed components. Because synchronization across multiple networked locations is the distinctive client/server concern, Option A is the correct answer.