Backup and recovery strategies in Raspberry Pi - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the main purpose of a backup in Raspberry Pi projects?

A backup is a copy of important data or system files that helps you restore your Raspberry Pi if something goes wrong, like data loss or system failure.

beginner

Name two common types of backups used in Raspberry Pi systems.

Full backup (copies everything) and incremental backup (copies only changes since last backup).

beginner

What is a recovery strategy in the context of Raspberry Pi?

A recovery strategy is a plan or method to restore your Raspberry Pi system and data from backups after a failure or data loss.

intermediate

Why is it important to test your backup and recovery process on a Raspberry Pi?

Testing ensures your backups work correctly and you can restore your system quickly when needed, avoiding surprises during real failures.

intermediate

What tool can you use on Raspberry Pi to create a full image backup of the SD card?

You can use the 'dd' command in Linux to create a full image backup of the Raspberry Pi SD card.

Which backup type copies only the changes made since the last backup?

A Incremental backup

B Mirror backup

C Differential backup

D Full backup

Incremental backup copies only the changes made since the last backup, saving time and space.

What command can you use on Raspberry Pi to create a full SD card image backup?

A dd

B mv

C cp

D tar

The 'dd' command creates a full image backup of the SD card, copying all data bit by bit.

Why should you regularly test your backup and recovery process?

A To make backups faster

B To delete old backups

C To ensure backups can be restored successfully

D To increase storage space

Testing confirms that backups are valid and can be restored when needed.

Which of these is NOT a good backup practice for Raspberry Pi?

A Backing up regularly

B Storing backups in the same SD card

C Keeping backups on a separate device

D Verifying backups after creation

Storing backups on the same SD card risks losing both original and backup if the card fails.

What is the main goal of a recovery strategy?

A To delete unnecessary files

B To speed up the Raspberry Pi

C To update software automatically

D To restore system and data after failure

Recovery strategies focus on restoring your system and data after problems.

Explain the difference between full and incremental backups on a Raspberry Pi.

Think about how much data each backup type copies.

Describe why having a tested recovery plan is important for Raspberry Pi users.

Consider what happens if you try to restore from a backup that doesn't work.