protecting data: tools and techniques

Question 1

techniques to protecting data; file permissions and access levels

Answer 1

• ensure access is restricted to those who need it

Question 2

techniques to protecting data; protocols

Answer 2

• define data transfer processes to ensure secure transfer

Question 3

techniques to protecting data; digital certificates

Answer 3

• allow secure data transfer using public key encryption

Question 4

techniques to protecting data; physical control

Answer 4

• prevent unauthorised access using locks, biometrics etc

Question 5

techniques to protecting data; passwords

Answer 5

• limit access by ensuring users keep a secure password to access system

Question 6

techniques to protecting data; back up and recovery procedure

Answer 6

• ensure that data can be recovered following any loss of data

Question 7

tools for protecting data; antivirus software

Answer 7

• detects and removes viruses and other malware from computer system
• protects systems from forms of malware
• but must be regularly updated as new viruses are created regularly

Question 8

techniques to protecting data; firewalls

Answer 8

• monitor network traffic into and out of an IT system and block suspicious traffic
• they prevent hacking attempts
• not 100% effective because security holes can be exploited

Question 9

techniques to protecting data; encryption

Answer 9

• conversion of data into unreadable code called cipertext
• encrypted data cannot be read without encryption key
• encryption keys must be maintained and kept secure

Question 10

encryption of stored and transmitted data

Answer 10

• encrypt hard disk so anyone who gains access to our system cant read the stored data
• encrypt data while being transmitted so if it is intercepted it can’t be read