Which technology maintains confidentiality of data in transit from the user's system to the server? (Port 443)

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Multiple Choice

Which technology maintains confidentiality of data in transit from the user's system to the server? (Port 443)

Explanation:
The mechanism that keeps data confidential as it travels from a user’s device to the server is SSL/TLS. This protocol wraps the data in encryption for web traffic, and port 443 is the standard port for HTTPS, which uses TLS to secure the connection. During the TLS handshake, the client and server authenticate each other (usually via certificates) and agree on symmetric session keys. Those keys encrypt all subsequent data, so even if someone eavesdrops on the network, the information remains unread and protected in transit. Other options aren’t the best fit here. IPSec can protect data in transit at the network layer (often used for VPNs), but it’s not tied to the typical web port or per-session browser traffic. SET was a payment protocol and not used for general secure web communications. Web Service is a type of interface, not a security protocol by itself.

The mechanism that keeps data confidential as it travels from a user’s device to the server is SSL/TLS. This protocol wraps the data in encryption for web traffic, and port 443 is the standard port for HTTPS, which uses TLS to secure the connection. During the TLS handshake, the client and server authenticate each other (usually via certificates) and agree on symmetric session keys. Those keys encrypt all subsequent data, so even if someone eavesdrops on the network, the information remains unread and protected in transit.

Other options aren’t the best fit here. IPSec can protect data in transit at the network layer (often used for VPNs), but it’s not tied to the typical web port or per-session browser traffic. SET was a payment protocol and not used for general secure web communications. Web Service is a type of interface, not a security protocol by itself.

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