CompTIA Security+ Question K-59

Which of the following concepts defines the requirement for data availability?

A. Authentication to RADIUS
B. Non-repudiation of email messages
C. Disaster recovery planning
D. Encryption of email messages

Answer: C

A disaster-recovery plan, or scheme, helps an organization respond effectively when a disaster occurs. Disasters may include system failure, network failure, infrastructure failure, and natural disaster. The primary emphasis of such a plan is reestablishing services and minimizing losses.