Certified Data Centre Professional (CDCP) Practice Exam

An external service level agreement (SLA) is particularly necessary when measuring the performance of a third-party service provider. This agreement outlines the expected level of service, including quality, availability, and responsibilities between the service provider and the client. It serves to protect both parties by ensuring that the provider meets agreed-upon standards and that the client understands what to expect from the services delivered.

In scenarios involving external service providers, establishing clear metrics and accountability is crucial because the organization does not have direct control over the external entity's operational processes. The SLA specifies important aspects such as uptime guarantees, response times, and the process for addressing service failures, making it an essential tool for managing relationships and performance expectations in outsourced or partnership scenarios.

The other scenarios do not necessarily require an external SLA, as they typically involve internal processes or compliance frameworks that do not involve an external service provider.