(ISC)2 Certified in Cybersecurity Practice Exam

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What term refers to the amount of time to restore service?

Recovery Point Objective (RPO)
Incident Response Time (IRT)
Recovery Time Objective (RTO)
Service Level Agreement (SLA)

The correct answer is: Recovery Time Objective (RTO)

The correct term referring to the amount of time to restore service is Recovery Time Objective (RTO). RTO is a critical metric in disaster recovery and business continuity planning that specifies the maximum acceptable amount of time to restore systems and services after an incident, such as a data breach, system failure, or natural disaster. Organizations define RTO based on their operational needs and the impact of downtime on their business functions. Setting a clear RTO helps organizations prioritize recovery efforts and allocate resources effectively, ensuring that services are back online within a defined time frame. This objective is directly tied to the organization's risk management strategy and its ability to maintain business continuity. In contrast, Recovery Point Objective (RPO) refers to the maximum amount of data loss measured in time that an organization can tolerate when recovering from an incident. Incident Response Time (IRT) focuses on the speed at which an organization can detect, respond to, and recover from a security incident. Service Level Agreement (SLA) is a contract that outlines the expected level of service between a provider and a customer, which may include aspects such as uptime and support response times but does not specifically address the recovery time after an incident.