APPENDIX B

Information And Communications Technology 210 with Choobineh at Texas A&M University

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By: Nick Barz
Created: 2012-04-08
Size: 23 flashcards
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Telecommunicationsystem

Enablethe transmission of data over public or private networks

Network

§Acommunications system created by linking two or more devices and establishing astandard methodology in which they can communicate

Thethree types of networks include

Localarea network (LAN)
Metropolitanarea network (MAN)
Widearea network (WAN)

Networksare differentiated by the following:

•Architecture – peer-to-peer, client/server

•Topology – bus, star, ring, hybrid, wireless

•Protocols – Ethernet, Transmission Control Protocol/Internet Protocol (TCP/IP)

•Media – coaxial, twisted-pair, fiber-optic

Thereare two primary types of architectures

•Peer-to-peer(P2P) network

•Client/servernetwork

Peer-to-peer(P2P) network

§Any network without a central file serverand in which all computers in the network have access to the public fileslocated on all other workstations

Client

Acomputer that is designed to request information from a server

Server

Acomputer that is dedicated to providing information in response to externalrequests

Client/servernetwork

•Modelfor applications in which the bulk of the back-end processing takes place on aserver, while the front-end processing is handled by the clients

Networkoperating system (NOS)

Theoperating system that runs a network, steering information between computersand managing security and users

Packet-switching

Occurswhen the sending computer divides a message into a number of efficiently sizedunits called packets, each of which contains the address of the destinationcomputer

Router

§Anintelligent connecting device that examines each packet of data it receives andthen decides which way to send it onward toward its destination

Networktopology

Refersto the geometric arrangement of the actual physical organization of thecomputers and other network devices) in a network

Bus
Star
Ring
Hybrid
Wireless

Protocol

§Astandard that specifies the format of data as well as the rules to be followedduring transmission

Interoperability

Thecapability of two or more computer systems to share data and resources, eventhough they are made by different manufacturers

Ethernet

Aphysical and data layer technology for LAN networking

TransmissionControl Protocol/Internet Protocol (TCP/IP)

Providesthe technical foundation for the public Internet as well as for large numbersof private network

TCP/IPapplications?

•Filetransfer protocol (FTP)

•Simplemail transfer protocol (SMTP)

•Hypertexttransfer protocol (HTTP)

•Simplenetwork management Protocol (SNMP)

Voiceover IP (VoIP)

UsesTCP/IP technology to transmit voice calls over long-distance telephone lines

Networktransmission media

§Refersto the various types of media used to carry the signal between computers

Wiremedia (guided)
Wirelessmedia (unguided)

Wiremedia

Transmissionmaterial manufactured so that signals will be confined to a narrow path andwill behave predictably

Threemost commonly used wire media types include?

1.Twisted-pairwiring

2.Coaxialcable

3.Fiberoptic (or optical fiber)

Wirelessmedia

Naturalparts of the Earth’s environment that can be used as physical paths to carryelectrical signals

About this deck

By: Nick Barz
Created: 2012-04-08
Size: 23 flashcards
Views: 7

About StudyBlue

“I have used this website for three exams, and I see a huge difference in my test results.”
Naj