What best describes the difference between a proxy server and a VPN?

What best describes the difference between a proxy server and a VPN?

• A. A proxy forwards requests on behalf of a client, typically for anonymity or caching.
• B. A VPN forwards requests on behalf of a client, typically for anonymity or caching.
• C. A proxy encrypts all traffic end-to-end for every application.
• D. A proxy forwards requests on behalf of a client, typically for anonymity or caching; a VPN creates an encrypted tunnel for all traffic between the device and the VPN endpoint.

Answer: (D)

Proxies handle traffic for individual applications by acting as an intermediary that forwards requests from a client to the destination and back. They’re often used to hide the source IP for those specific requests or to cache responses so repeated requests come back faster. However, they don’t automatically encrypt everything you do online, and only the traffic from the configured application passes through the proxy. VPNs, in contrast, create a secure, encrypted tunnel between your device and the VPN server. All traffic from the device—across all applications and protocols—routes through that tunnel, which provides broad privacy and protection for everything you do online. This setup also masks your IP for all activity, not just a single app. So the best description combines both ideas: a proxy forwards requests on behalf of a client, typically for anonymity or caching; a VPN creates an encrypted tunnel for all traffic between the device and the VPN endpoint.

Proxies handle traffic for individual applications by acting as an intermediary that forwards requests from a client to the destination and back. They’re often used to hide the source IP for those specific requests or to cache responses so repeated requests come back faster. However, they don’t automatically encrypt everything you do online, and only the traffic from the configured application passes through the proxy.

VPNs, in contrast, create a secure, encrypted tunnel between your device and the VPN server. All traffic from the device—across all applications and protocols—routes through that tunnel, which provides broad privacy and protection for everything you do online. This setup also masks your IP for all activity, not just a single app.

So the best description combines both ideas: a proxy forwards requests on behalf of a client, typically for anonymity or caching; a VPN creates an encrypted tunnel for all traffic between the device and the VPN endpoint.