3.3 · Lesson 4 of 4
Cloud storage
Syllabus 3.3.5
What this lesson covers
- Compare cloud storage with local storage
Key vocabulary
- Cloud storage
- Storing files on physical servers in data centres, accessed remotely over the internet.
- Local storage
- Storing data on your own device or drive, such as an SSD or USB flash drive.
- Data centre
- A building dedicated to housing servers, with engineers, cooling and very high uptime.
- Redundancy
- Keeping several copies of files in different locations, so data isn't lost if one copy is.
- Scalability
- The ability to increase storage space easily when more is needed.
- Synchronisation
- Keeping files up to date across all of a user's devices.
- Uptime
- The percentage of time a system is working and available.
Check your learning
- Quick check: 4 questions
- Key vocabulary test: 7 terms
- Activity 1: Cloud or local? · drag and drop
- Activity 2: Speeds and scenarios · 8 questions
- Activity 3: Cloud storage quiz · 8 questions