Supported Protocols for AWS VPN Connections

Answer - A.

The AWS documentation mentions the following.

Although the term VPN connection is a general term, in the Amazon VPC documentation, a VPN connection refers to the connection between your VPC and your own network.

AWS supports Internet Protocol security (IPsec) VPN connections.

For more information on VPN connections, please visit the below link:

Of the options given, only IPSec is a protocol supported for AWS VPN connections.

IPSec (Internet Protocol Security) is a secure network protocol suite that encrypts and authenticates IP packets in a communication session. It is commonly used to create Virtual Private Networks ( VPNs) between two endpoints over the public internet. AWS VPN Connections use IPSec VPN tunnels to provide secure, encrypted connectivity between customer networks and AWS VPCs (Virtual Private Clouds).

OpenSSL is not a protocol for VPN connections, but rather an open-source software library that provides cryptographic functions for SSL/TLS and other cryptographic protocols. AES (Advanced Encryption Standard) and DES (Data Encryption Standard) are encryption algorithms that can be used with IPSec, but they are not protocols themselves. AES is a stronger encryption algorithm than DES and is typically used for VPN connections due to its higher level of security.

In summary, AWS VPN connections support IPSec as the protocol for secure VPN connectivity, while OpenSSL, AES, and DES are encryption algorithms that can be used with IPSec.