ITIL Updated ITIL-4-Foundation Exam Questions and Answers by alexandru

Nonrepudiation provides an assurance that the sender of data is provided with proof of delivery and the recipient is provided with proof of the sender's identity, so neither can later deny having processed the data. Further, this concept can apply to any activity, not just the sending and receiving of data; in a more general sense, it is a mechanism to prove that an activity was performed and by whom. Nonrepudiation is typically comprised of authentication, auditing/logging, and cryptography services.

https://www.sciencedirect.com/topics/computer-science/nonrepudiation

https://www.bmc.com/blogs/itil-service-request-management/

The purpose of the service configuration management practice is to ensure that accurate and reliable information about the configuration of IT assets, and the relationships that support them, is available when and where it is needed1. IT assets are any financially valuable components that can contribute to the delivery of an IT product or service2. Configuration items are any component that needs to be managed in order to deliver an IT service3. References: ITIL Foundation - ITIL 4 Edition, page 15; ITIL® 4 – A Pocket Guide, page 36; ITIL® 4 Practice Guide: Service Configuration Management, page 7.

Service management is the term used to describe how organizations manage their services to deliver value to their customers and other stakeholders. Service management requires a set of specialized organizational capabilities, such as processes, roles, tools, and competencies, that enable the effective and efficient delivery of services1. Service management is also a professional practice supported by an extensive body of knowledge, experience, and skills3. References: ITIL Foundation - ITIL 4 Edition, page 2; ITIL® 4 – A Pocket Guide, page 11.