1.1 System Backup Flashcards
1.1.11
Identify a range of causes of data loss
Natural disasters: Natural disasters may cause power outages, or destroy data centres leading to data loss.
Power outage: Losing power on a computer with data that hasn’t been saved.
User error: Forgetting to save data, or accidentally deleting data.
Losing a physical storage device: Losing a USB stick, external hard drives etc. Also falls under user error.
System crashes: A system crash occurs when a computer program such as a software application or an operating system stops functioning properly and exits. This can lead to data loss.
Virus, malware or other malicious activity (whether from the outside or from inside employees): Malicious activity can lead to data deletion or corruption.
1.1.12
Outline the consequences of data loss in a specified situation
- Data may or may not be replaceable
- Various stakeholders may be affected (frustration, loss of important information)
- May have financial implications
- May cause company shutdown
1.1.13
Describe a range of methods that can be used to prevent data loss
- Data redundancy: Store information twice in diffierent locations of the same data storage system
- Anivirus software: To detect and prevent malicious attacks
- Offsite storage / Cloud storage: Backup data to a storage facility which is physically separate from the organization’s core infrastructure. Cloud storage uses the internet to store data in remote servers maintained by a service provider. (Considered the same by markschemes)
- Regular backups: Increasing the frequency of data backups
- Printed hard copies: Information could be hard copied.
1.1.14
Evaluate automatic updates
- More convenient for users
- Requires an internet connection
- Less control over your updates
1.1.14
Evaluate manual updates
- Users have full control over the updates
- They will usually be more informed of what the updates contain
- More time consuming for users
