DELL D-ISM-FN-23 Practice Test - Questions Answers, Page 10

Machine learning is a subfield of artificial intelligence that gives computers the ability to learn without explicitly being programmed[1]. It does this by applying an algorithm to large amounts of data in order to discover patterns and insights that can be used to inform decisions and predictions. This allows machines to learn from experience and make decisions in a way that mimics the human brain.

Differential backups are more efficient than incremental backups because, instead of backing up only the changes made since the last backup, they back up all of the data that has changed since the last full backup. This means that, unlike incremental backups, the size of the differential backup is not limited and can expand to contain more data than an incremental backup. Additionally, differential backups are faster to restore since they only need to read the differential backup and last full backup, rather than all of the incremental backups.

The backup server is the component that maintains the catalog containing details about the backups that have occurred. The catalog is a database that stores information about the backup jobs, such as the date, time, and type of backup that occurred, as well as the files that were backed up. The catalog also stores other information, such as the status of the backup jobs, as well as the type of data that was backed up. The backup server is responsible for managing the catalog and ensuring that the details stored in the catalog are accurate.