Which technology uses Internet connectivity to transmit data between sites with encryption in transit?

Which technology uses Internet connectivity to transmit data between sites with encryption in transit?

• A. VPNs
• B. WANs
• C. Intranets
• D. Extranets

Answer: (A)

The key idea here is protecting data as it travels between distant sites over the public Internet. A VPN creates an encrypted tunnel for that data, so information moving between locations stays confidential and tamper-proof even though it’s riding over the open network. This explicit focus on encryption in transit over the Internet is what makes VPNs the right fit for secure site-to-site communication. WANs describe broad connections across geographic areas, but encryption isn’t an inherent feature of the concept and it doesn’t specify using the Internet for data between sites. An intranet is an internal network for an organization, typically not relying on Internet-wide connectivity between multiple sites. An extranet extends some internal resources to trusted external partners and can use VPNs for security, but its defining trait isn’t encryption in transit by itself.

The key idea here is protecting data as it travels between distant sites over the public Internet. A VPN creates an encrypted tunnel for that data, so information moving between locations stays confidential and tamper-proof even though it’s riding over the open network. This explicit focus on encryption in transit over the Internet is what makes VPNs the right fit for secure site-to-site communication.

WANs describe broad connections across geographic areas, but encryption isn’t an inherent feature of the concept and it doesn’t specify using the Internet for data between sites. An intranet is an internal network for an organization, typically not relying on Internet-wide connectivity between multiple sites. An extranet extends some internal resources to trusted external partners and can use VPNs for security, but its defining trait isn’t encryption in transit by itself.