If an organization takes a full backup every Sunday morning and a daily differential backup each morning, what is the fewest number of backups that need to be restored after a disaster on Friday?

If an organization takes a full backup every Sunday morning and a daily differential backup each morning, what is the fewest number of backups that need to be restored after a disaster on Friday?

• 7
• 6
• 1
• 2 

EXPLANATION

Your network uses the following backup strategy: full backups every Sunday night and Differential backups Monday through Saturday nights. Thursday morning the storage system fails. How many restore operations will you need to perform to recover all of the data?
Answer 2