CCNA: Cisco Certified Network Associate — Question 41

When a site-to-site VPN is used, which protocol is responsible for the transport of user data?

Answer options

• A. IPsec
• B. IKEv1
• C. MD5
• D. IKEv2

Correct answer: A

Explanation

IPsec is the protocol specifically designed to encrypt and transport user data over a VPN connection, ensuring secure communication. IKEv1 and IKEv2 are protocols used for establishing and managing the secure connections, but they do not handle the actual user data transport. MD5 is a hashing algorithm and is not involved in the transport of data in a VPN context.