AS CS Unit 05 & 06

State one difference and one similarity between pharming and phishing

Describe how a firewall protects the data on the computer.

Describe the difference between the security and privacy of data.

Identify one other software-based measure that could be used to restrict the access to the data on the computers. ( expect username & password )

Give two similarities and one difference between spyware and a virus.

Describe how data validation and data verification help protect the integrity of data.

Describe how data verification help protect the integrity of data.

A checksum can be used to detect errors during data transmission.

Describe how a checksum is used.

Describe how a parity block check can identify a bit that has been corrupted during

transmission.

Each of the following algorithms performs data validation.

State the type of validation check that each of the algorithms performs.