A help desk technician is using a local network server for image deployment. Which of the following should the technician use to connect a workstation to the server and begin downloading the image?

SFTP, or Secure File Transfer Protocol, is primarily used for transferring files securely over a network rather than for booting or deploying images. While it can facilitate the download of image files once a system is already running, it does not provide the necessary booting process to connect to a server for initial image deployment.

A Storage Area Network (SAN) is used for providing block-level storage access to servers. It is not a method for connecting workstations directly to a server for image deployment; rather, it is a dedicated network designed for storage purposes, making it unsuitable for the task described.

Using a USB drive is a viable option for image deployment when local physical access to the workstation is available. However, in this scenario, the technician requires a network-based solution to connect to the server for downloading the image, making USB an impractical choice compared to PXE.