Explanation
Business impact analysis (BIA) is the process that provides the output of recovery time objectives (RTOs), which are the maximum acceptable time frames for restoring business functions or processes after a disruption. Business continuity plan (BCP) is the document that describes the strategies and procedures for ensuring the continuity of critical business functions or processes in the event of a disruption. Disaster recovery plan (DRP) is the document that describes the technical steps and resources for restoring IT systems and data in the event of a disruption. Service level agreement (SLA) is the document that defines the expectations and obligations between a service provider and a service consumer, such as availability, performance, and security. References:
https://www.isaca.org/resources/isaca-journal/issues/2018/volume-1/business-impact-analysis-bia-and-disaster-re
https://www.isaca.org/resources/isaca-journal/issues/2017/volume-6/service-level-agreements-in-the-cloud