A technician backs up the data on a server with a full backup on Sunday night. On Monday through Friday night, a different type of backup is run on the server. A file needs to be restored Saturday mor

"Daily" describes the frequency of the backup, not the type of backup that requires all previous tapes for a full restore.

Incremental backups only back up data that has changed since the last full or incremental backup. To restore a system, you need the last full backup and all subsequent incremental backups, which matches the scenario where all tapes from Sunday (full) through Friday (incremental) are needed.

A full backup backs up all selected data, and if run daily, would not require the previous full backup plus all subsequent tapes for a single file restore; only the latest full backup would be needed.

A differential backup backs up all data that has changed since the last full backup; to restore, you would need the last full backup and only the latest differential backup, not all daily differential tapes.