Question

1. What is OSPF?

2. What is RIP?

3. What is VPN?

Answer 1

1. What is OSPF?

Open Shortest Path First is a router protocol used to find the best path for packets as they pass through a set of connected networks. OSPF is designated by the Internet Engineering Task Force (IETF) as one of several Interior Gateway Protocols (IGPs) -- that is, protocols aimed at traffic moving around within a larger autonomous system network like a single enterprise's network, which may in turn be made up of many separate local area networks linked through routers.

2.    What is RIP?

Routing Information Protocol is one of the oldest distance-vector routing protocols which employ the hop count as a routing metric.RIP prevents routing loops by implementing a limit on the number of hops allowed in a path from source to destination.

3. What is VPN?

A VPN, or Virtual Private Network, allows you to create a secure connection to another network over the Internet. It is a middle layer that sits between you and your online content.VPNs can be used to access region-restricted websites, shield your browsing activity from prying eyes on public Wi-Fi, and more.