Service level agreements (question As) will be most effective in ensuring that Internet service providers (ISPs) comply with expectations for service availability. Intrusion detection system (IDS) and spam filtering services would not mitigate (as directly) the potential for service interruptions. A right-to-audit clause would not be effective in mitigating the likelihood of a service interruption.

Explanation/Reference:
Explanation:
The recovery point objective (RPO) is the point in the processing flow at which system recovery should occur. This is the predetermined state of the application processing and data used to restore the system and to continue the processing flow. Disaster declaration is independent of this processing checkpoint.
Restoration of the system can occur at a later date, as does the return to normal, after-image processing.

Section: INFORMATION SECURITY PROGRAM MANAGEMENT

Explanation
As high-level statements, information security policies should be straightforward and easy to understand. They arc high-level and, therefore, do not address network vulnerabilities directly or the process for communicating a violation. As policies, they should provide a uniform message to all groups and user roles.