Question 71

Explanation

The correct answer: A virtual private network encrypts all data transmitted between the user's device and the VPN server, ensuring that the information is kept private and secure. Disabling cookies does not necessarily protect privacy, as other tracking methods may still be used. Using public Wi-Fi leaves the user vulnerable to interception by other users on the same network. Two-factor authentication adds an extra layer of security, but it does not encrypt data transmission. The incorrect answers: While disabling cookies can prevent some tracking, it does not provide encryption and therefore does not ensure privacy in online transactions. Other tracking methods may still be used, and the user's data may still be vulnerable to interception. Public Wi-Fi networks are inherently insecure, as they are open to anyone within range. Any data transmitted over a public Wi-Fi network can be intercepted by other users on the same network. Using a public Wi-Fi network does not ensure privacy in online transactions. Two-factor authentication adds an extra layer of security by requiring the user to provide a second form of identification, such as a code sent to their phone or a fingerprint scan. However, it does not encrypt data transmission and does not ensure privacy in online transactions. Encryption is necessary to prevent interception and ensure the privacy of data transmission.