You need to identify which backup solution meets the technical requirements. What should you identify?

LON-SQL1 is a SQL Server, and a system state backup of a SQL instance does not protect Active Directory data; SQL databases require their own backup strategy separate from domain controller recovery.

The Windows\DigitalLocker folder on LON-DC2 is a file-level backup of a specific directory, which does not fulfill the domain controller system state backup requirement.

A system state backup of a domain controller includes the Active Directory Domain Services database (NTDS.dit), SYSVOL, boot files, and the registry, which are the components required for authoritative domain controller recovery. MON-DC1 is the relevant domain controller in this scenario, so its system state backup satisfies the technical requirement for protecting AD data. System state backups are the Microsoft-supported method for backing up and restoring domain controllers.

A backup of the Windows\DigitalLocker folder on MON-DC2 is a partial file backup and does not capture the full set of AD components that a system state backup provides.