A systems administrator needs to convert ten physical servers to virtual. Which of the following would be the MOST efficient conversion method for the administrator to use?

Rebuilding servers from scratch is the least efficient option because it requires a full OS reinstall and application reconfiguration on every one of the ten servers.

Vendor conversion tools add overhead from installation, configuration, and potential licensing requirements per server, making them less efficient than a direct disk clone for bulk conversions.

A disk clone creates a sector-by-sector copy of the physical drive, preserving the OS, installed applications, and all data in a format that can be mounted as a virtual disk immediately. For ten servers, this approach eliminates reinstallation and reconfiguration on each machine, making it faster and less error-prone than the alternatives.

Restoring from backup depends on backup format compatibility with the target hypervisor and often requires additional conversion steps to produce a bootable virtual disk.