Routers

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What is the difference between a switch and router in terms of what they inspect?

A switch inspects Ethernet data to determine where to send things. Whereas, a router inspects IP data to determine where to send things

When we want to recieve or send data to computers in other networks what kind of device do we use?

A router

LAN

A single network referred to as a local area network

Once traffic reaches the Internet Service Provider, which type of router takes over?

A core router

What is a router?

A device that knows how to forward data between independent networks

BGP

Border Gateway Protocol

Finish this sentence, routers are global guides?

For getting traffic to the right places

What do routers store?

Internal tables which contain information about how to route traffic between lots of different networks around the world

ISP

Internet Service Provider

What is the purpose of BGP?

It is a protocol which allows routers to share data with each other and lets them learn about the most optimal paths to forward traffic

What do core routers usually have?

Many different connections to many other routers

What layer of a TCP IP five layer network model would a router be considered?

Network layer

What is the common type of router you will see and what is a characteristic of them?

One for a small office or home network. One characteristic is that they don't have detailed routing tables.

When you open a web browser or load a web page, what happens?

There is a possibility that the traffic between computers and the web servers could have traveled over dozens of different routers

What are hubs and switches considered in terms of a LAN?

They are primary devices used to connect computers to a single network

What part of the Internet do core routers form and what is their direct responsibility?

They form the backbone. Their direct responsibility is how we send and receive data all over the Internet every single day

What is the purpose of a router for a small office or home network?

To take traffic coming from inside the home or office LAN and to forward it along to the ISP.

In addition to handling traffic for a home or small office router, what other kind of traffic do they have to deal with?

With much more complexity in making decisions regarding where to send traffic


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