Which protocols secure traffic between a browser and the SSL VPN device?

• A. SSL or TLS
• B. IPsec
• C. SSH
• D. DES

Answer: (A)

When a user connects to an SSL VPN through a browser, the secure channel is established with TLS (the successor to SSL) to protect traffic between the browser and the VPN device. TLS/SSL provides encryption, server authentication via certificates, and data integrity, which is exactly what a browser-based web session needs. IPsec operates at the network layer to secure VPN tunnels, not the browser-to-device web session. DES is an old cipher algorithm, not a protocol for establishing a secure channel, and SSH is intended for secure remote command access rather than securing browser traffic to a VPN device.