A full backup
a full backup
Incremental Backup. There 3 data backup types, full backup, incremental backup and differential backup and the only backup type that clears the archive bit is incremental.
An Incremental backup backs up only the selected files that have their archive bit set to ON, setting them back to OFF. This results in a backup of all files that are new or changed since the last backup, whether it was a full or an incremental. The advantage of an Incremental is that it takes the least amount of time and media of all the backup methods.A Differential backup backs up only the selected files that have their archive bit set to ON but does not set the archive bit back to OFF. A Differential backup will back up all selected files that are new and changed since the last full backup. The advantage of a Differential comes at restore time; you'll need only the last full backup and the last differential to get a complete restore. In the case of restoring with Incremental backups, all the Incremental backups since the last full backup plus the last full backup would be necessary.
An incremental backup has the least amount of files. It contains only those few files that have changed since the last backup. In contrast, a complete backup does all the files in a filesystem. This is commonly done when backing up to a new set of media for the first time. Consecutive incremental backups can be merged, into the previous incremental backup, or the previous complete backup. It is considered to be good practice to include several levels of backups. For example, incrementals for the last two days, followed by a complete backup for three days ago, a week ago, and each month before that.
An incremental and differential backup does that. An incremental backs up files that were changed since the last backup, whether it was full or another incremental. A differential backs up all files that have changed since the last full backup. Incremental backups backup faster. Differential backups restore faster.
An incremental backup is a useful way to backup data while saving hard drive space. These backups contain only the changes made to software since the previous backup was made.
Differential & incremental backup strategy is used in industries
Incremental
Incremental: Windows 9x/Me/NT/2000/XP Differential: Windows 98/NT/2000/XP
ANSWER: It stores all the files that have changed since the last backup.
1. Normal 2. Incremental
Five type of backup they are :1. Normal backup - It copy all the files marked in to be backup2. Incremental backup - only those files that have been created or changed since last incremental or normal backup.3. Decremental backup - The only copies files that have been created or changed since the last normal or incremental backup4.copy backup - It copy all the files u have selected5. Daily backup - It copy all the files u have selected that have been modified on the day