Which application reduces the manual effort to update 500 Dell EMC PowerEdge R750 servers?

A user removes several Dell EMC PowerEdge servers from the production environment.
What can they use to reset the server in a secure manner?

The administrator plans to deploy secure connect gateway in the environment. The environment consists of Windows, Linux, and VMware.
Where should the application be installed?

A technician has received a new server with 5 drives and needs to configure the drives into a specific configuration as provided by the administrator.
The administrator will also add additional disks as separate raid arrays at a later date.
- Drive 0 is passed through to the OS (to be managed by the OS)
- Drives 1-3 as a RAID 5 with drive 4 as a hot spare just for this newly created RAID 5 How should the technician do this in the PERC BIOS?

After completing a disk rebuild operation, a technician needs to configure the system so that the rebuild process happens faster the expense of slowing users down.
Which setting should be changed?