Encryption protection is least likely to be used in which of the following circumstances?
A. When transactions are transmitted over local area networks.
B. When wire transfers are made between banks.
C. When confidential data are sent by satellite transmission.
D. When financial data are sent over dedicated leased lines.
Answer:A
A is correct. Various factors need to be considered. Encoding is important when confidential data are transmitted between geographically separated locations that can be electronically monitored. Although LANs may need encryption protection, the type of data and the described communication media make the other options appear more vulnerable.