Reesby Academy · IT & Cyber
Data Backup Fundamentals
Protect important files with reliable backup routines.
About this course
A backup is only useful if you can restore from it when something goes wrong. This course explains why backups matter, how they differ from simple file sync, how the 3-2-1 principle protects your data, how to schedule and monitor backups and how to test restores. It's practical knowledge for anyone responsible for business files, whether in a large team or a small office.
What you will be able to do
- You'll be able to explain why backups matter and what they protect against
- You'll be able to tell the difference between a backup and file sync
- You'll be able to apply the 3-2-1 principle to a small business setting
- You'll be able to schedule, monitor and test restores so backups actually work
Course outline
- Why Backups Matter6 min · Lesson notes, example, action task · 2-question quizData can be lost through hardware failure, theft, accidental deletion, fire or ransomware. A reliable backup lets you recover quickly and keep operating.
- Backup Versus Sync8 min · Lesson notes, example, action task · 2-question quizSync services keep files identical across devices, so a deleted or corrupted file can be deleted everywhere. A backup keeps earlier versions, so you can go back in time.
- The 3-2-1 Principle8 min · Lesson notes, example, action task · 2-question quizThe 3-2-1 principle is a simple guide: keep three copies of your data, on two different types of media, with one copy stored off-site. It protects against most common failures.
- Scheduling and Monitoring8 min · Lesson notes, example, action task · 2-question quizBackups must run on a schedule, and someone must check they have succeeded. A backup that silently fails for months gives false confidence.
- Testing Restores8 min · Lesson notes, example, action task · 2-question quizA backup you have never restored from is a hope, not a plan. Test restores regularly so you know the files can be recovered, how long it takes and who needs to do it.
- Tools you'll need6 min · Lesson notes, example, action task · 2-question quizSimple backups can use built-in tools and cloud storage you may already have. Dedicated backup software adds scheduling, monitoring and encryption for larger teams.
- Careers & next steps6 min · Lesson notes, example, action task · 2-question quizBackup and recovery skills are used in IT support, systems administration and business continuity roles. This lesson sets out typical paths and how to check what the work is worth.
- Final quiz and certificate10 questions, pass mark 8 of 10. Pass to get your Reesby Academy certificate with a verification link.