An MSSP received several alerts from customer 1, which caused a missed incident response deadline for customer 2. Which of the following best describes the document that was violated?

Key Performance Indicators (KPIs) are metrics used to evaluate the performance and effectiveness of various aspects of a business. While KPIs may include incident response times as a measurement, they do not detail the contractual obligations and responsibilities between a service provider and its customers, as captured in an SLA.

Service Level Objectives (SLOs) define the target level of service that a provider commits to meeting for a specific aspect of their service. While incident response times could be part of SLOs, they do not encompass the broader set of obligations and penalties for non-compliance outlined in an SLA.

A Memorandum of Understanding (MOU) typically outlines the terms and understanding between two or more parties regarding a specific project, initiative, or relationship. It is broader in scope than an SLA and may not necessarily include the detailed service-level commitments and consequences for non-compliance seen in an SLA.