In the context of VPNs, what does "tunneling" specifically refer to?
- Controlling access to the VPN
- Encapsulating data in a secure protocol
- Encrypting the entire network
- Establishing a direct physical connection
In VPNs, "tunneling" refers to the process of encapsulating data within a secure protocol, often adding an additional layer of encryption to protect the data as it traverses an untrusted network (such as the internet). This ensures the confidentiality and integrity of the data being transmitted.
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