These are intelligent network devices that store information. With this info, they are able to determine the best path for data transfer.
What is a Router.
100
A technology that allows a secure tunnel to be created across a network such as the Internet.
What is VPN?
200
Is a telecommunication device grouped as one of computer network components.
What is a Switch?
200
is a way of granting user access to files in public servers. Users that are allowed access to data in these servers do not need to identify themselves, but instead log in as an anonymous guest.