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  • Token Ring Network
    706 words
    Mesh, Bus, Ring, and Star are all types of a topology. Each of these types of topology is used for specific network's but some networks can uses any combination of the four. A mesh topology has each station connected to the others. This network is more difficult to set up but provides a great deal of performance and reliability. In a Mesh network if a segment of the network is broken, then the packet being sent will find an alternate route to its destination. Mesh are used in Wide Area Networks ...
  • Lan Local Area Network
    860 words
    LAN Local Area Network or LAN, in computer science, a group of computers and other devices dispersed over a relatively limited area and connected by a communications link that enables any device to interact with any other on the network. LANs commonly include microcomputers and shared (often expensive) resources such as laser printers and large hard disks. Most (modern) LANs can support a wide variety of computers and other devices. Each device must use the proper physical and data-link protocol...
  • Packets In The Tcp Dump Format
    1,627 words
    Introduction If you " ve ever been a network administrator, the call you dread the most might be one you receive in the middle of the night by some panicked employee stating that a portion of your critical network has gone down. What troubleshooting options are available to provide answers to your network problem? Besides having a proactive help desk that can "read" the mind of your network, an important part of troubleshooting involves using a network protocol analyzer. If you " ve done your re...
  • Third Type Of Wireless Network
    1,341 words
    There are many reasons why wireless networks are used. One reason is for a temporary backup to an existing broken cable network. Cable networks can leave many users disconnected from the network by one bad or broken cable. When this happens a wireless network may help to get these users connected until they can be reconnected through or repaired cable. This also leads to the usage of wireless networks being used as a backup. It would be much easier to connect the disconnected users to the networ...
  • Speaker Identification And Verification Over Telephone Network
    2,721 words
    SPEAKER IDENTIFICATION AND VERIFICATION OVER SHORT DISTANCE TELEPHONE LINES USING ARTIFICIAL NEURALNETWORKSGanesh K Venayagamoorthy, Nar end Sunderpersadh, and Theophilus N Engineering Department, M L Sultan Technik on, P O Box 1334, Durban, South Africa. ABSTRACT Crime and corruption have become rampant today in our society and countless money is lost each year due to white collar crime, fraud, and embezzlement. This paper presents a technique of an ongoing work to combat white-collar crime in ...
  • Cost Of Setting Up A Server Network
    901 words
    What type of network would you recommend and why? The very fist thing that must be taken into consideration in setting up your network is what capabilities do you want your network to have. The relative ease and low cost to set up a Peer-to-Peer networking system to form a small Local Area Network is the recommendation I am making for your company. Peer-to-Peer networks offer no centralized data storage and eliminate the control over sharing files from one main server. Each computer system conne...
  • Switched Communication Network Networks
    395 words
    Repeater: operates at physical layers of os i model. Digital signals or analog signals that carry digital data can only be transmitted over a limited distance. After a certain distance attenuation or noise endangers the integrity of that data. Repeaters reproduce and transmit the received digital data. This new signal is the exact duplicate of the original signals. Repeaters offer simple means to extend a network, increased traffic on the network is introduced. This increased network congestion ...
  • Computer Science Network
    495 words
    Computers store all information as binary numbers. The binary number system uses two binary digits, 0 and 1, which are called bits. The amount of data that a computer network can transfer in a certain amount of time is called the bandwidth of the network and is measured in kilobits per second (kips) or megabits per second (m bps). A kilobit is 1 thousand bits; a megabit is 1 million bits. A dial-up telephone modem can transfer data at rates up to 56 kips; DSL and cable modem connections are much...
  • Authentication Server
    926 words
    Security Terminology Define the following terms: 1. Authentication - ability to identify who it isa. ACL - (access control list) is associated w / a given resource. Describes groups, users, machines and their permissions associated with that particular resource. i. Token- one time only password key. CA- certificate of authority- creates certificates -system or entity trusted to generate and distribute digital certificates. Can be privately used or from a 3rd party e-commerce site. Verifies ident...
  • Telephones And Telephone Networks
    1,195 words
    What is Telecommunications? Telecommunications enables people around the world to contact one another, to access information instantly, and to communicate from remote areas. It usually involves a sender and one or more recipients linked by a technology, such as a telephone system, or computer network (LANs or WANs), that transmits information from one place to another. Devices used for telecommunications can convert different types of information, such as sound and video, into electronic signals...
  • Network Address Translation And Filter Tables
    1,974 words
    Decision Support Systems Used in Network Hardware How does data pass through the internet? If you said decision support systems, you are correct. In an indecisive world, network hardware devices uses decision support systems (DSS) to efficiently and effectively route data, in a local area network, with the least amount of errors and inconsistencies. Decision support systems are the brains behind network hardware, and would be near impossible for them to work without the intelligent core of each ...
  • Network Administrators And Security Personnel
    1,538 words
    In today's technological world there are many vulnerabilities to the computer networks. If a malicious attacker exposes these vulnerabilities your business could be interrupted causing you thousands of dollars in damage. Not only could you lose business by your network going down but also by the lack in consumer confidence, and the possible penalties imposed on you by the government for not properly securing your customers vital information. There are several methods or concepts available to the...
  • Applications Will The Network Offer
    4,440 words
    Contents 1. Planning a Logical Network Design 2. Planning and Design Components 3. The Physical Network 4. Planning Resources Article Description Scott Mueller and Terry Ogle tree talk about your network's logical and physical design, including planning and components of a logical network design, the physical network, and planning resources. From the Book Upgrading and Repairing Networks, 4th Edition$53.99 (Save 10%) Some of the Main Topics in this Chapter Are Planning a Logical Network Design P...
  • Lans Use Protocols Known As Ethernet
    940 words
    LANs: Local Area Networks Local Area Networks also called LANs have been a major player in industrialization of computers. In the past 20 or so years the worlds industry has be invaded with new computer technology. It has made such an impact on the way we do business that it has become essential with an ever-growing need for improvement. LANs give an employer the ability to share information between computers with a simple relatively inexpensive system of network cards and software. It also lets...
  • Average Atm Network
    749 words
    Asynchronous Transfer Mode (ATM) Networking Asynchronous Transfer Mode (ATM) is, and will be for many years to come, the top of the line in networking technology. Since the creation of the Network (the ARPAnet (Advanced Research Project Agency Network) ) scientists and engineers have strived to achieve the fastest information exchange speeds combined with the most cost-efficient hardware and software. Their products and ideas have always been based on packet technology and turn-based transfers; ...
  • Network Interface Card
    730 words
    NIC: The Unsung Hero The Network Interface Card, or NIC for short, is the most important peripheral when it comes to operating on a network. Many people think the most important item in a network is the cabling, or maybe the network software, or even the computer or server being used. While each of these items is important they are worthless without a Network Interface Card, for successful network operation. The NIC has taken most of the legwork out of the way we do business. No more does Bob, i...
  • Star Topologies
    562 words
    Computer Network Modifications. Regional Offices. Existing Bus Topology (hubs) should be replaced with star topology using switches. In star topology, all devices are connected to a common central location, typically a hub or a switch, in this case we will be using switches. (See diagram 1) when a node sends data to the central location, the central device retransmits the information and sends it to the destination. Because all cabling is connected to the central device, if one link fails, only ...
  • Maximum Length Of One Segment
    302 words
    Ethernet The I 802.3 standard defines ethernet at the physical and data link layers of the OSI network model. Most ethernet systems use the following: Carrier-sense multiple-access with collision detection (CSMA / CD) for controlling access to the network media. Use baseband broadcasts A method for packing data into data packets called frames Transmit at 10 Mbps, 100 Mbps, and 1 Gbps. Types of Ethernet 10 Base 5 - Uses Thicket coaxial cable which requires a transceiver with a vampire tap to conn...
  • Used Standards In A Networking Situation
    286 words
    In today's fast paced, connection oriented, streaming digital world of information exchange, networking has become one of the highest priorities among the information market's requirements. However, the current standards in networking are becoming nigh on obsolete. The most commonly used standards in a networking situation have been in use for several years, and in the information technology field, that is rapidly approaching the venerable stage. Recently however, new standards have began to sho...
  • Large Remote Access Vpn
    924 words
    Over the past few decades, many things have changed. With the growth of the Internet, life has been altered in so many ways because of the information superhighway. Anything from candies to cars can be purchased over the internet. The range of information available to people is practically limitless. I can research computer networking while reading an article on the gubernatorial race in the New York Times, listen to a speech by world-renowned speaker Tom Hopkins, and download "500 miles" by Pet...

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