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Summary CCNA 1 Version 5.0

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CCNA 1 Version 5.0 summary

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  • January 22, 2016
  • 56
  • 2013/2014
  • Summary

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Networking today

Instant messaging(im)/texting: Realtime communication between two or more people
Social media: Consists of interactive websites where people and communities create user generated
content with friends, family peers and teh world.
Collaboration Tools: Give people the opportunity to work together on shared documents. Every
where on the planet.
Weblogs: webpages that are easy to update and edit. Are individual.
Wikis: are webpages that groups of people can edit and view together.
Peer-to-peer File sharing: sharing files without having to store and download them from a central
server.

Components of networking

Internet: is literally a collection of interconnected private and public networks.

Devices: routers, clients, servers, switches.
Media: Wiring, cabling.
Services: software

End devices: computers, printers, voip phones, security cams, smartphone.
Intermediary network devices: Network acces( switches and wireless acces points),
internetworking(routers),security(firewalls).
Network media: Metallic wires within cables, glass or plastic fibers, wireless transmission.

Network interface card: provides the physical connection to the network at the pc or server.
Physical port: a connector or outlet.
Interface: specialized ports on an internetworkin device that connect to individual networks.

, Physical topology diagrams: identify the physical location of intermediary devices, configured ports
and cable installation.
Logical topology diagrams: identify devices, ports and ip addressing scheme.

Local area Network(LAN): A network infrastructure that provides access to users and end devices in
a small geographical area.

1. Interconnect end devices in a limited area.
2. Is usually administerd by a single organization or individual.
3. Provide high speed bandwidth to internal devices and intermediary devices.

Wide Area Network(WAN): A network infrastructure that provides acces to other networks over a
wide geopgraphical area.

1. Interconnect LANs over wide geopgraphical areas;
2. Usually administerd by multiple service providers;
3. Provide slower speed links between LANs

Metropolitan Area Network(MAN): A network infrastructure that spans a physical area larger than a
LAN but smaller than a WAN.
Wireless LAN(WLAN): Similar to a LAN but wirelessly interconnects users and end points in a small
geographical area.
Storage Area Network(SAN): A network infrastructure designed to support file servers and provide
data storage, retrieval and replication.

The internet

Internet Engineering Task Force (IETF), Internet Corporation for assigned Names and Numbers
(ICANN), Internet Arichitecture Board(IAB) plus many others: are organizations that purpose of
helping to maintain structure and standardization of internet protocols and processes.

Intranet: used to refer to a private connection of LANS and WANs that belongs to an organization
and is designed tob e accessible only by the organization.

Extranet: examples:
1. A company providing access to outside suppliers/contractors
2. A hospital providing a booking system to doctors so the can make appointments fort heir
patients.

Internet: The world.

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