• Chapter 2. Study Questions
    does CSMA/CD work? The CSMA-CD stands for Carrier Sense Multiple Access with Collision Detection, and is used primarily for communications. More specifically, it works by way of the carrier sensing protocol. For example, if information is being relayed, but another signal comes up, the CSMA-CD will...
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  • Network Topolgy Types
    connect to this backbone using T connectors or taps. • Coaxial cablings ( 10Base-2, 10Base5) were popular options years ago. 3 Bus Topology Advantages Cheap and easy to implement Disadvantages Network disruption when computers are added or removed A break in the cable will prevent all systems...
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  • Telecommunication networks
    two advantages and two disadvantages of this technology. (6 marks) Microwave transmission refers to the technology of transmitting information or energy by the use of radio waves whose wavelengths are conveniently measured in small numbers of centimeter; these are called microwaves. Advantages: ...
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  • mac protocol in satellite communication
    or devices. In FDMA no coordination or synchronization is required. Each station can use its own band without interference.This technique has the advantage of simplicity, but lacks flexibility and re-configurability. TIME DIVISION MULTIPLE ACCESS The time division multiple access (TDMA) channel...
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  • Network Topologies
    provide a redundant connection. If the primary backbone fails for any reasons then the network automatically switches to the secondary backbone. Advantages | Disadvantages | * nodes are easily added or removed without affecting the existing network * if a node goes down, the network is unaffected...
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  • Attendace System
    | |IEEE specification |802.3 | |Advantages |Cheap, easy to install and trouble shoot | |Disadvantages ...
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  • How Ethernet Works
    Ethernet channel access protocol is called Carrier Sense Multiple Access with Collision Detect (CSMA/CD). Metcalfe also developed a much more sophisticated backoff algorithm, which, in combination with the CSMA/CD protocol, allows the Ethernet system to function all the way up to 100 percent load. In...
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  • Network Topologies and Standards
    determining which device uses the network media at a given time, and Ethernet uses a technique known as CSMA/CD. CSMA/CD Ethernet networks use Carrier Sense, Multiple Access/Collision Detection (CSMA/ CD) to determine which computer should use the shared media at a given moment. “Carrier Sense” means that...
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  • Data link layer
    to recover from collisions (e.g., via delayed retransmissions) Examples of random access MAC protocols: ❍ ❍ ❍ slotted ALOHA ALOHA CSMA, CSMA/CD, CSMA/CA 5: DataLink Layer 5-21 Slotted ALOHA Assumptions ❒ all frames same size ❒ time is divided into equal size slots, time to transmit...
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  • Fiber Optic Technology
    less. As a cabling technology, fiber optic cabling resides at the data link layer of the OSI Model, which is discussed later in this paper. The advantages to using Fiber Optic cable in the configuration of networks include the following. • Fiber optic cable is typically thinner and less expensive...
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  • Essays
    small geographic area. It typically connects workstations, personal computers, printers, servers, and other devices. LANs offer computer users many advantages, including shared access to devices and applications, file exchange between connected users, and communication between users via electronic mail...
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  • Aloha Notes
    multiple access with collision detection (CSMAlCD) and carrier sense multiple access with collision avoidance (CSMA/CA). CSMA/CD tells the station what to do when a collision is detected. CSMA/CA tries to avoid the collision. ALOHA ALOHA, the earliest random access method, was developed at the University...
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  • Kudler Network Analysis
    another station is transmitting; if not, it begins its own transmission. This is referred to as carrier sense and the term carrier sense multiple access (CSMA) is used to describe a class of basic LAN designs that use it. There is a delay while the beginning of the packet propagates along the cable before...
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  • Etherner
    Mbps ( 1 Gbps ) raw bandwidth, that is 100 times faster than the original Ethernet, yet is compatible with existing Ethernets, as it uses the same CSMA/CD and MAC protocols. When Gigabit Ethernet enters the market it will compete directly with ATM. This paper presents a survey of Gigabit Ethernet technology...
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  • Doc, Docx, Pdf, Wps, Rtf, Odt
    relatively small geographic area. It typically connects workstations, personal computers, printers, and other devices. LANs offer computer users many advantages, including shared access to devices and applications, file exchange between connected users, and communication between users via electronic mail...
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  • Fast Ethernet and Token Ring
    ………………………………………………………………5-6 2.3 Advantages and Disadvantages of the Fast Ethernet ……………………………………………...7 3.0 Token Ring ………………………………………………………………………………...8-9 3.1 Overview of the Token Ring… ………………………………………………………………………..9 3.2 Implementation of the Token Ring ……………………………………………………………...10-11 3.3 Advantages and Disadvantages...
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  • Telecommunication
    and Ring topology local area network. (4 points) Answer: CSMA/CD is one type of medium access protocols in a Bus topology local area network. CSMA/CD is modification of pure carrier sense multiple access (CSMA). CSMA/CD is used to improve CSMA performance by terminating transmission as soon as a collision...
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  • Netwrking Concepts
    does it conform to? Ethernet is a popular, relatively inexpensive, easy-to-install LAN architecture with the following characteristics: • Uses the CSMA/CD media access control. • Data transmission normally occurs at 10Mbps. • Typically implemented in a bus or star topology. • Ethernet LANs are normally...
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  • Embedded
    the equipment when so operated. Contents 1. Aloha…………………………………………………………………………..... 1 2. CSMA……………………………………………………………………………. 6 3. CSMA/CD……………………………………………………………...……...... 11 4. CSMA/CA……………………………………………………………………...... 16 5. Token Bus………………………………………………………………………. 24 6. Token...
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  • The Ethernet
    card located in each station. The medium access control mechanism is based on a system called Carrier Sense Multiple Access with Collision Detection (CSMA/CD). Computers attached to a bus network must coordinate to ensure that only one computer sends a signal at any time or the signals will collide. The...
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