How do VPNs preserve confidentiality?1 pointEncrypt data in transitMonitor traffic to and from a networkUse temporary memory to store data requested by external serversTranslate internet domain names to IP addresses

VPNs, or Virtual Private Networks, preserve confidentiality primarily through the encryption of data in transit. Here's a step-by-step explanation:

1. When you connect to a VPN, the VPN client on your device creates a secure connection to a VPN server.
2. Before your data is sent over this connection, it is encrypted, or converted into a code that only the VPN server can decipher.
3. This encrypted data is then transmitted over the internet. Even if someone were to intercept this data, they would not be able to understand it because it is encrypted.
4. Once the data reaches the VPN server, it is decrypted, or converted back into its original form. The VPN server then sends your data to its final destination.
5. The process is reversed for incoming data. The VPN server encrypts the data before sending it to you, and your VPN client decrypts it so you can understand it.

This process ensures that your data remains confidential while in transit because it cannot be understood if intercepted. It's important to note that while VPNs are a powerful tool for preserving confidentiality, they do not protect against all forms of online threats.