The technician should use net use command-line tool to remove and reconnect mapped drives. Net use is a command that allows users to manage network connections and resources, such as shared folders or printers.
Net use can be used to map or unmap network drives by specifying their drive letters and network paths. For example, net use Z: \server\share maps drive Z: to \server\share folder, and net use Z: /delete unmaps drive Z:.
Set is a command that displays or modifies environment variables for the current user or process. Set is not related to managing mapped drives. Mkdir is a command that creates a new directory or folder in the current or specified location. Mkdir is not related to managing mapped drives. Rename is a command that renames a file or folder in the current or specified location. Rename is not related to managing mapped drives.
References: CompTIA A+ Core 2 (220-1002) Certification Exam Objectives Version 4.0, Domain 1.6