Backup and Restore

Which one of these types of backups will take the longest?

• Full backup
• Differential backup
• Incremental backup

Answer explanation

The full backup is backing up ALL your data so it will take the longest time and use the most space.

Which one of these types of backups will take the shortest time?

• Full backup
• Differential backup
• Incremental backup

Answer explanation

Assuming you are backing up each day, the incremental backup will only be backing up TODAY'S data so it will take the least amount of time and space.

When restoring all of your data, which restore type will take the shortest time?

• Full backup
• Differential backup
• Incremental backup

Answer explanation

Because the full backup will backup all of the data. You will only need to perform one (1) restore. Since only one restore needs to be done, it will take the shortest time.

When restoring all of your data, which restore type will take the longest time?

• Full backup
• Differential backup
• Incremental backup

Answer explanation

Because the incremental backup typically only backs up that day's data (assuming the backup is done daily). You will need to perform many restores. You will restore the last full backup and EVERY incremental backup in order since the full backup. Since many restores needs to be done, it will take the longest time.

When restoring all of your data, which restore type will require that you restore exactly 2 backup sets?

• Full backup
• Differential backup
• Incremental backup

Answer explanation

When restoring a differential backup, you will restore the last full backup and the last differential backup. That means that a differential restore always requires two (2) restores to take place.

Your company is doing full backups, but they are taking too long. You need to change the type of backup. Which backup type would you recommend if you want to minimize the time needed to restore the data in the event of a total loss of data?

• Full backup
• Differential backup
• Incremental backup

Answer explanation

While the incremental backup is definitely takes the shortest time during the backup, it also takes the LONGEST time to restore. The best backup if the company wants to save time if a restore is needed is the DIFFERENTIAL backup.

Which backup type will backup all the data that has been changed or added since the last full backup?

• incremental backup
• differential backup
• full backup
• mirror backup

Which backup will backup all the data that has been changed or added since the last backup?

• incremental backup
• differential backup
• full backup
• mirror backup

Which backup will backup the data AS IT is changed?

• incremental backup
• differential backup
• full backup
• mirror backup

Which backup will backup all of your selected data?

• incremental backup
• differential backup
• full backup
• mirror backup