Q 2. Explain the basics of how the Internet works.

POINT OF PRESENCE ISP
s provide each customer with a point of presence
(POP)—a local access point to the Internet—a collection of modems and other
equipment in a local area. The POP acts as a local gateway to the ISP’s network.
INTERNET EXCHANGE POINT (IXP)
The ISP in turn connects to an Internet
Exchange Point (IXP), a routing computer at a point on the Internet where
several connections come together. IXPs are run by private companies that
control physical infrastructures that allow different ISPs to exchange Internet
traffic.
INTERNET BACKBONE
Each IXP has at least one computer whose task is
simply to direct Internet traffic from one IXP to the next. IXPs are connected by
the equivalent of interstate highways known collectively as the Internet
backbone, high-speed, high-capacity transmission lines, usually fiber-optic lines,
that use the newest communications technology to transmit data across the
Internet. Backbone connections are supplied by Internet backbone providers


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- Summer '17
- ALBERT DOMINIC
- E-mail, Control Protocol/Internet Protocol