Which statement correctly describes a configuration item and the configuration management database?

ITIL 4 Foundation, objective 6. Purpose and key terms of 15 ITIL practices hard

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The options

Not correct A configuration item is a component that has been deployed to the live environment; a CMDB records which releases contain it

Being live is not part of the CI definition — components in test environments can be CIs. The CMDB holds configuration records, not a release manifest.

Not correct A configuration item is any financially valuable component that can contribute to delivering an IT product or service; a CMDB stores its purchase and depreciation data

Financial value is the test for an IT asset, not a configuration item. Many CIs, such as documentation or a network route, have no financial value, and some assets are not managed as CIs.

Correct A configuration item is any component that needs to be managed in order to deliver an IT service; a CMDB is a database used to store configuration records throughout their lifecycle

Correct. Both definitions match: the CI is the managed component, and the CMDB holds the records that describe CIs and their relationships across their lifecycle.

Not correct A configuration item is any component a user can request from the organization; a CMDB stores the catalogue of available service offerings

This conflates the CMDB with the service catalogue, which lists the offerings users may request. Most CIs — internal servers, network routes, supporting documentation — are never requested by a user and are still CIs, because the test is whether the component must be managed to deliver the service.

Why

The IT asset and configuration item definitions overlap but are not the same, and distinguishing them is the point of this item. Asset is a financial test ('financially valuable'); CI is a service delivery test ('needs to be managed in order to deliver a service'). A leased laptop can be both; a documented procedure can be a CI but not an asset.

Where this comes from

Cited
ITIL 4 syllabus clause 6

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