Topic 1 - Data Loss

Question 1

Accidental deletion

Answer 1

-Very common cause
Solution
- File recovery software

Question 2

Poor data storage organization system

Answer 2

-Data can’t be found
Solution
- Restructure data organization

Question 3

Building fires

Answer 3

-Rare
Solution
- Store data in two locations

Question 4

Closing without saving

Answer 4

• common
  Solution
• Autosave

Question 5

Viruses

Answer 5

Solution
- Antivirus
- Regular backups

Question 6

Continued use after signs of failure

Answer 6

Solution
- Self-monitoring analysis and reporting technology
- PC check up
- Backups

Question 7

Data Corruption

Answer 7

Error in computer data
Solution
- Backups

Question 8

Firmware corruption

Answer 8

Errors in computer data
Solution
- Regular backups

Question 9

Natural disasters

Answer 9

Rare
Solution
- store data in two locations
- backups

Question 10

Consequences of data loss - Example: hospital

Answer 10

Medical records of patients in hospitals are lost
- Retrieval
- Time-consuming, might not always be possible

Question 11

Prevention methods

Answer 11

• Regular backup on hard disks or magnetic tapes
• Firewall
• Data storage in two or more locations
• Antivirus program
• Human error reduction
• Auto save backup

Question 12

What is redundancy

Answer 12

Duplication of storage devices and stored data of a computer system to secure the stored data
- Store data permanently and non-volatile

Question 13

What is a failover system

Answer 13

• Automatic
• Capable of switching to a spare computer system upon hardware failure, network failure or any other error