To ensure SLA compliance and protection against ransomware, which of the following configurations would accomplish...

•Use Hardened Repositories as the primary target, which are Linux-based repositories that support immutability and prevent ransomware from accessing or deleting backup files12.

•Use backup copy jobs to create a second copy of the backups to a different site, which will provide additional protection and redundancy in case of a disaster or data loss34.

•Use Veeam Backup & Replication servers at one location, which will simplify the management and monitoring of the backup infrastructure and reduce the operational costs.

The other configurations are not as effective or secure, as they either do not use immutability, do not create a second copy of the backups, or do not leverage the benefits of Veeam Backup & Replication servers.

References: 1: Protect against Ransomware with Immutable Backups - Veeam 2: Hardened Repository - User Guide for VMware vSphere 3: Backup Copy Modes - User Guide for VMware vSphere 4: Backup copy jobs - Veeam Backup & Replication Best Practice Guide : Veeam Backup & Replication Architecture Overview