Virtualization abstracts the operating system and applications from the underlying physical hardware. This means a virtual machine (VM) isn't tied to a specific server. If a physical server fails, the VMs running on it can be quickly moved to another available server (either on-site or at a disaster recovery location) without requiring changes to the VM's configuration. This rapid failover significantly reduces downtime and helps meet RTOs.
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B) It allows for real-time data encryption across all virtual networks. While virtualization can support encryption, this is a security feature, not directly related to minimizing RTOs in a disaster recovery scenario focused on hardware failure. Encryption is important for data protection, but it doesn't directly facilitate faster recovery from hardware outages.
C) It automates the backup process of physical servers to offsite locations. Virtualization simplifies backups (VM snapshots, for example), but it doesn't inherently automate the transfer of those backups to offsite locations. That's typically handled by separate backup and replication tools.
D) It provides isolated environments for different applications to run concurrently. This is a benefit of virtualization for resource management and application isolation, but it doesn't directly contribute to minimizing RTOs in a disaster recovery context. Isolation helps prevent application conflicts but doesn't speed up recovery from hardware failures.