A bare metal backup requires which of the following backup methodologies?

A full backup is required for bare metal recovery because it includes all system files, applications, and user data from the entire machine, enabling the recreation of the operating system and its configuration from scratch on bare hardware. Without a full backup, critical OS components needed for initial boot and full system restoration would be missing.

A differential backup only saves changes since the last full backup, making it insufficient for a bare metal restore that requires the complete baseline of the operating system and applications.

An incremental backup only saves changes since the last backup (full or incremental), meaning it would not contain the comprehensive system state needed to restore an entire operating system to bare metal.

A database backup specifically targets database files and transactions, which is not comprehensive enough to restore an entire operating system, applications, and all associated system configurations to bare metal.