Siobhan is the e-commerce administrator for her company Web site. She is considering which
type of security mechanism her company should use to communicate with its vendors. She
chooses a Virtual Private Network (VPN). Which of the following reasons support Siobhan’s
decision?

A.
VPNs provide multiple virtual Internet sites for companies at the lowest cost possible.

B.
VPNs lower the transmission cost of packets containing multimedia-enriched data.

C.
VPNs allow secure data communication using the Internet.

D.
VPNs provide privileged access to secure public Internet sites.