In ITIL 4, which practice is responsible for maintaining the Configuration Management Database (CMDB)?
Service Configuration Management is the dedicated practice responsible for maintaining accurate and reliable information about the services and the configuration items (CIs) that support them. This includes planning, identifying, controlling, monitoring, and verifying the versions, baselines, and relationships of all CIs throughout their lifecycle. Its core function is to ensure the integrity of the Configuration Management System (CMS) and the Configuration Management Database (CMDB), providing a foundational understanding of the service landscape for other practices.
Why this answer
Service Configuration Management (D) is the ITIL 4 practice responsible for maintaining the Configuration Management Database (CMDB). It ensures that accurate and reliable information about configuration items (CIs) and their relationships is available when and where needed, supporting all other service management practices.
Exam trap
The trap here is that candidates confuse the practice that uses the CMDB (Change Enablement or IT Asset Management) with the practice that is responsible for maintaining it, but ITIL 4 explicitly assigns CMDB maintenance to Service Configuration Management.
How to eliminate wrong answers
Option A is wrong because Change Enablement manages the lifecycle of changes to services and CIs, but it does not own or maintain the CMDB; it uses the CMDB to assess change impact. Option B is wrong because IT Asset Management focuses on managing the financial, contractual, and lifecycle aspects of IT assets (e.g., procurement, depreciation), not the logical configuration data stored in the CMDB. Option C is wrong because Deployment Management handles the movement of new or changed components to live environments, but it does not maintain the CMDB; it may update CI statuses as part of deployment, but the CMDB's ongoing maintenance is the responsibility of Service Configuration Management.