Which term describes the process of transferring private network data through a public network, such as with a VPN?

Which term describes the process of transferring private network data through a public network, such as with a VPN?

• A. Tunneling
• B. Encapsulation
• C. Relaying
• D. Routing

Answer: (A)

Tunneling is the process of sending private network data over a public network by wrapping or encapsulating the original packets inside another protocol suitable for transmission across the public medium. This creates a virtual path—often called a tunnel—between the communicating endpoints, so the private data can travel securely or privately over the public network, like the Internet. At the far end, the outer wrapper is removed to reveal the original private packets for delivery. This is how VPNs securely connect private networks over public infrastructure. Encapsulation is a component of tunneling—the act of adding headers to pass data through the tunnel—but the overall concept described is tunneling. Routing relates to choosing paths through networks, and relaying is about forwarding data, neither of which captures the idea of carrying private data inside a public network tunnel.

Tunneling is the process of sending private network data over a public network by wrapping or encapsulating the original packets inside another protocol suitable for transmission across the public medium. This creates a virtual path—often called a tunnel—between the communicating endpoints, so the private data can travel securely or privately over the public network, like the Internet. At the far end, the outer wrapper is removed to reveal the original private packets for delivery. This is how VPNs securely connect private networks over public infrastructure. Encapsulation is a component of tunneling—the act of adding headers to pass data through the tunnel—but the overall concept described is tunneling. Routing relates to choosing paths through networks, and relaying is about forwarding data, neither of which captures the idea of carrying private data inside a public network tunnel.