Which of the Following Failover Designs BEST Describes a Warm

Multiple Choice

Which of the following failover designs BEST describes a warm site?

A) It is a site with a current replica of the data. Servers and storage are running and ready to provide services previously provided by the failed site
B) Servers and storage are actively running and ready to provide services previously provided by the failed site within an hour or less, though additional time might be required to bring data up to latest copy
C) It is a site with a replica of the backups from last night. Servers and storage are in place but are not currently running. Services previously provided by the failed site will be available within 24 hours
D) It is a site that has monthly replicas of backup data and a bare-bones server infrastructure to facilitate restores. Servers may need to be provided by a disaster recovery company before services can be restored