Virtual Private Network is the acronym for VPN. VPN is a computer network. The VPN network is layered on the top of a computer network. The privacy denotes that data traveling over the VPN is actually not visible to the traffic of the underlying network. This is made possible due to the strong encryption.
Most of the VPNs are made to be a high-security network. While Multiprotocol Label Switching is the acronym for MPLS, it is a mechanism that directs data and also carries it from a network node to another one. MPLS makes virtual links easy to create between nodes that are distant. MPLS is able to encapsulate packets of varieties of protocols of the network.
The VPN is a network that is layered on top of another computer network, while MPLS carries and directs data from a network node to another network node. VPN uses a tunneling protocol, which is cryptographic, to provide a high level of security.