Teresa Ruiz works as a cloud security engineer in an IT company. In January 2021, the data deployed by her in the cloud environment was corrupted…

An incremental backup captures only the data that has changed since the last backup was performed, regardless of whether the last backup was full or incremental. This method is efficient in terms of storage space and backup time. Barbara's action of backing up only the files that changed since the "last executed backup" directly aligns with the definition of an incremental backup strategy. This contrasts with a full backup, which copies all data, or a differential backup, which copies data changed since the last full backup.

A. Partial Backup is a non-standard term; it generally means backing up a specific subset of data, not necessarily based on change time.
B. Full Backup copies all data files and folders. This was performed by Teresa initially, not by Barbara in her subsequent backup.
D. Differential Backup copies all files that have changed since the last full backup, not the last backup of any type.

1. National Institute of Standards and Technology (NIST). (2010). Contingency Planning Guide for Federal Information Systems (NIST Special Publication 800-34 Rev. 1). Section 4.3.2, Page 38.

2. AWS Documentation. (n.d.). Backup plan concepts. AWS Backup Developer Guide. Retrieved from aws.amazon.com. The documentation defines incremental backups as storing "only the changes from the previous backup."

3. Microsoft Azure Documentation. (2023). Azure Backup architecture and components. Section: "Types of backup." The documentation states, "Incremental backup stores only the blocks that have changed since the last backup."