CISSP questions: backup method

Which common backup method is the fastest on a daily basis?
Full backup method
Incremental backup method
Fast backup method
Differential backup method

Question 905 | Difficulty level: 3/5 | Relevancy: 3/3
Correct answer: Incremental backup method
Details: The incremental backup method only copies files that have been recently changed or added. Only files with their archive bit set are backed up. This method is fast and uses less tape space but has some inherent vulnerabilities, one being that all incremental backups need to be available and restored from the date of the last full backup to the desired date should a restore be needed.
Study area: CISSP CBK domain: Telecommunication and Network Security
Covered topics: Backups and offsite storage

This question is Sponsor and authorized by CCCURE