Some PT files which has the extension pka can assist you in learning, for example: you just learnt about vlan and the activity ask you to create 4 vlans in different switches If you made this vlans. Downloaded Activity file is opened correctly with Acrobat reader. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common. opens PT Activity with no space for answers.
More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. An example of a router would be the owner's cable or DSL router, which connects to the Internet through an ISP. The most familiar type of routers are home and small office routers that simply pass data, such as web pages, email, IM, and videos between the home computers and the Internet. Then, using information in its routing table or routing policy, it directs the packet to the next network on its journey.
When a data packet comes in on one of the lines, the router reads the address information in the packet to determine its ultimate destination. A router is connected to two or more data lines from different networks (as opposed to a network switch, which connects data lines from one single network). A data packet is typically forwarded from one router to another through the networks that constitute the internetwork until it reaches its destination node. Routers perform the 'traffic directing' functions on the Internet.
A router is a networking device that forwards data packets between computer networks.