A network administrator configures an incremental backup utility to run nightly on an enterprise file server. Which of the following best describes the precise operation and purpose of this utility during its nightly run?
It copies only the files that have been created or modified since the last backup of any type, and then clears their archive attributes.
It copies all files that have changed since the last full backup, leaving their archive attributes unchanged.
It compresses all inactive system directories to free up local disk space, while updating the file system table.
It mirrors the active state of the primary storage drive to a secondary backup drive in real-time to provide instant failover.