Complete OS and Service/Application Recovery with Compatible Hardware
Question
In an effort to reduce recovery time during hardware failures, a server administrator needs to implement a backup method that will allow for complete OS and service/application recovery as long as compatible hardware is available.
Which of the following backup types meets this requirement?
Answers
Explanations
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The backup type that meets the requirement of allowing complete OS and service/application recovery as long as compatible hardware is available is the "Bare metal" backup.
A bare metal backup, also known as a system state backup or image backup, creates a complete copy of the operating system, applications, and data on the server. This type of backup includes not only the files and folders but also the system configuration, drivers, and registry settings.
When a hardware failure occurs, a bare metal backup can be used to quickly restore the entire system to a new or repaired server with compatible hardware. The backup can be stored on external media, such as a USB drive or a network storage device, or it can be saved to a cloud-based backup service.
On the other hand, Incremental backups only back up files and folders that have changed since the last backup. They require the most recent full backup to be available for restoring data, which could increase recovery time.
Snapshots are point-in-time copies of data, such as a virtual machine or storage volume. They are useful for creating a restore point before making changes but are not a complete system backup.
A Full backup, as its name suggests, makes a complete backup of all data, including all files and folders, but not necessarily the system configuration and settings. Although it is more comprehensive than an incremental backup, it does not provide the same level of system recovery as a bare metal backup.
In summary, bare metal backup is the best option for complete OS and service/application recovery as long as compatible hardware is available, and it ensures that the system can be restored quickly in the event of a hardware failure.
