CHAPTER TWO NETWORKING SYSTEMS AND LOCAL AREA NETWORKS (LAN) A network is a system of two or more computers that are connected in some manner. Each computer on the network has access to the files and peripheral equipment (such as printers or modems) on all the other computers on the network. The origin of local area networks can be traced‚ in part‚ to IBM terminal equipment introduced in 1974. At that time‚ IBM introduced a series of terminal devices designed for use in transaction-processing
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Top-Down Network Design Third Edition Priscilla Oppenheimer Priscilla Oppenheimer Cisco Press 800 East 96th Street Indianapolis‚ IN 46240 ii Top-Down Network Design Top-Down Network Design‚ Third Edition Priscilla Oppenheimer Copyright© 2011 Cisco Systems‚ Inc. Published by: Cisco Press 800 East 96th Street Indianapolis‚ IN 46240 USA All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means‚ electronic or mechanical‚ including photocopying
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EXECUTIVE SUMMARY 6 RESPONSIBLE PERSONNEL 7 CHIEF SECURITY OFFICER 7 ELECTRONIC SECURITY MANAGER 7 PHYSICAL SECURITY MANAGER 7 RISK MANAGEMENT OFFICER 7 ASSESSMENT OF RISK 8 PHYSICAL 8 ELECTRONIC 9 DATA ACCESS SECURITY 10 GENERAL SECURITY 10 USER AUTHORISATION 10 USER AUTHENTICATION 11 SECURE DATABASE 11 PHYSICAL FILES 11 ELECTRONIC INTRUDER DETERRENCE – VIRUSES AND MALWARE 12 SOCIAL ENGINEERING 12 FILE SHARING 12 WIRELESS NETWORKS 13 STAFF VETTING AND SEPARATION PROCEDURES 13 GENERAL
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concentrator that connects a group of computers (’nodes’ in network terminology) to a token ring local area network. Networking Devices ... Bridges - used to join two network segments together‚ it allows computers on either segment to access resources on the other - can also be used to divide large networks into smaller segments Networking Devices ... Routers - networking devices used to extend or segment networks by forwarding packets from one logical network to another - most often used in large
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Network Design In this paper I will be going over a network design proposal for a building on the UMUC campus in Adelphi‚ Maryland. I would plan to run a fiber optic network to ensure the fastest speeds possible and fiber optics are notorious for not having any signal loss compared to a Cat5e. Using a star topology throughout the building with the servers in each classroom connected to the server room on the respective floor. Equipment used to build the network will consist of servers‚ routers‚ hubs
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Network Components Laurea Pruitt University Of Phoenix March 6‚ 2011 A computer is a piece of equipment that is used by people to carry out tasks and process. A computer is connected to a network if that computer needs to communicate to another computer on the same network. Computers range in size and processing level. A computer is needed in any wireless network. Price varies from $299.99 to $2‚999.99 Cisco .A firewall is directly connected to a network or computer as a device or as built
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Network Topologies Network topologies are an important part of the network. Without the proper topology‚ the network may not meet the needs of the organization. The layout of a network is referred to as the topology. How nodes in a network are connected to each other and communicate is determined by the topology. There are three basic topologies with several typical variations‚ or combinations. A description of four topologies follows. Mesh Topology Mesh topology is the first topology discussed
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Network Design Rodney T Caldwell NTC/362 November 28‚ 2012 Marjorie Marque Network Design In this paper I will explain what Kudler Fine Foods need to do so the company can make a business decision on what course of action to take to upgrade the infrastructure of their current network. The network Kudler is using is called a bus topology that uses a common backbone to connect all devices. If one of the systems on the network wants communicates to another system‚ it broadcast a message
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Wireless Network A wireless network‚ as its name would suggest‚ is a network of computers and computer peripherals that are connected to each other without wires. This enables ease of communication‚ especially for mobile computing platforms. Further‚ there are a number of other advantages to a wireless network that make them increasingly common in both the workplace and at home. Nearly all wireless networks in the world work on a standard set up by the Institute of Electrical and Electronics
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ESSAY ON LAN NETWORK • DEFINITION OF LAN • HARDWARE COMPONENTS OF LAN • SOFTWARE COMPONENTS OF LAN • DESCRIPTION OF EACH COMPONENT • DIFFERENT TOPOLOGY IN LAN • ADVANTAGES AND DISADVANTAGES OF EACH TOPOLOGY LAN : The typical definition of Local Area Network (LAN) is "two or more connected stations (PCs‚ servers‚ computer…) in the same limited area‚ sharing data and peripheral devices‚ and operating .The most popular LANs include 10 Mbps & 100 Mbps Ethernet‚ 4 Mbps
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