Internet of Things (IoT) Practice Exam

Which option best describes the function of a VPN?

1. Encrypting internet traffic

2. Increasing internet speed

3. Connecting to multiple networks

4. None of the above

The correct answer is: Encrypting internet traffic

The function of a VPN (Virtual Private Network) primarily revolves around creating a secure and encrypted connection over the internet. By encrypting internet traffic, a VPN ensures that the data transmitted between your device and the VPN server is protected from eavesdropping or interception by unauthorized parties. This encryption is critical for maintaining privacy and security, especially when using public Wi-Fi networks or accessing sensitive information. While a VPN can also facilitate connections to different networks, its hallmark feature remains the encryption it provides, which protects user data and browsing habits from intrusion. This makes it an essential tool for individuals and businesses looking to safeguard their digital communications. Other options, such as increasing internet speed, can be somewhat misleading because while a VPN can sometimes optimize routes for data, it typically introduces overhead due to encryption processes, which might even slow access in some scenarios. Thus, the most accurate representation of a VPN's core function is its role in encrypting internet traffic.