Which type of backup backs up only new and recently changed files since the last backup?

Which type of backup backs up only new and recently changed files since the last backup?
A . full backup
B . incremental backup
C . differential backup
D . copy backup

View Answer

Answer: B

Explanation:

Full backups with incremental backups start with a full backup followed by several incremental backups. For example, once a week, you would perform a full backup on Friday night, which shuts off the archive attribute indicating that the files were backed up. Then any new files or changed files would have the archive attribute turned on. You would then perform an incremental backup Monday, Tuesday, Wednesday, and Thursday night, which only backs up new and changed files and shuts off the archive attribute.