Configuration monitoring and management tools (often part of network management systems) maintain version-controlled records of device configurations, track changes, and log who made them. This provides accountability and supports compliance audits.
A . Network access control (NAC) manages endpoint access policies but does not track device config changes.
C . Zero Trust is a security framework requiring strict identity verification, not a configuration tracking tool.
D . Syslog collects system logs, but without a config monitoring system, it does not directly compare documentation to device state.
Reference (CompTIA Network+ N10-009):
Domain: Network Operations - Change management, configuration management, auditing.