The IT department at a software development company is setting up a VPN for employees.

The tunneling protocol the department uses must encrypt network connections at the packet level. The connection needs to support mutual authentication as well as low packet overhead.

Which setup should the team choose?

###answer###

A Transport Layer Security $($TLS$)$ tunnel with extensible authentication protocol $($EAP$)$ for mutual authentication.

An IPsec tunnel with Secure Sockets Layer $($SSL$)$ for mutual authentication.

A TLS tunnel with PPTP $($Point$-$to$-$Point Tunneling Protocol$)$ for mutual authentication.

An IPsec tunnel with Internet Key Exchange $($IKE$)$ for mutual authentication.