Explanation
Recovery criteria, indicating the circumstances under which specific actions are undertaken, should be contained within a business continuity policy. Telephone trees, business impact assessments (BIAs) and listings of critical backup files are too detailed to include in a policy document.

Explanation
Network isolation techniques are immediately implemented after a security breach to reduce the extent of further damage by limiting the access and communication of the compromised systems or networks with the rest of the environment. This can help prevent the spread of malware, the exfiltration of data, or the escalation of privileges by the attackers. Network isolation techniques can include disconnecting the affected systems or networks from the internet, blocking or filtering certain ports or protocols, or creating separate VLANs or subnets for the isolated systems or networks. Network isolation techniques are part of the incident response process and should be performed as soon as possible after detecting a security breach. References = CISM Review Manual 15th Edition, page 308-3091; CISM Review Questions, Answers & Explanations Database -
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Explanation
Business managers are best suited to determine the recovery time objectives (RTOs) for their business processes and functions, as they have the knowledge and authority to assess the impact of downtime and the acceptable level of service continuity. RTOs are the maximum acceptable time that a business process or function can be disrupted before it causes significant harm to the organization's objectives, reputation, or compliance. References = CISM Review Manual, 16th Edition, Chapter 5, Section 5.2.1.11