Which front disk chassis option is available in a Dell EMC PowerEdge R740 server?

After a disk rebuild operation, a technician needs to configure the system so that the rebuild process happens faster in the future, even at the expense of stowing users down.
How should the technician perform this task?

What can a technician do to ensure that no malicious code can be introduced into any of the servers through physical access?

Which mobile devices are supported by Quick Sync 2.0 in 14G PowerEdge servers?

A technician builds a bootable ISO with Repository Manager, and then mounts the ISO via the iDRAC virtual console. After the updates have completed, the technician reboots the server to apply the updates. When reviewing the updates, the technician determines NOT all updates were applied.
What is causing this issue?