Important information about LAN Topologies
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Use short answers to explain the difference (including the advantages and disadvantages of) between:
- Mesh, Bus, Ring and Star topologies
- Ethernet, Token Ring, FIDDI and wireless
Use a short answer to explain at what levels of the OSI model TCP/IP functions.
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Solution Summary
The solution compares the advantages and disadvantages of mesh, bus, ring and star topologies and enternet, token ring, FIDDI and wireless.
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"1. Mesh, Bus, Ring and Star topologies "
- Bus topology advantages are the cable is inexpensive, simple to understand and easily to extend. Bus disadvantages are difficult to troubleshoot, increase network traffic decrease network performance and limited physical length. Star topology is configured in the shape of a star. The advantages of a Star are failure of a computer will not stop the network, easy troubleshooting, easy to add additional computer to the network. Star disadvantages are expensive cable between each computer and if the hub fails the network will stop. Ring topology is in the shape of a ring the advantages of ring are the equal opportunities for all computers to transmit data, simple installation and no degradation of signal. The disadvantages are failure of any node stops the network; distance is limited.
"2. Ethernet, Token Ring, FIDDI and wireless "
- Ethernet and Token Ring LAN technologies operate in different ways and both systems have their inherent advantages and disadvantages. The decision on which topology to use can be influenced by a number of factors. The most common factors to consider are cost, reliability, speed, size, administration, security and growth.
Ethernet is a frame-based computer networking technology for local area networks (LANs). It defines wiring and signaling for the physical layer, and frame formats and protocols for the media access control (MAC)/data link layer of the OSI model. Ethernet is mostly standardized as IEEE 802.3. It has become the most widespread LAN technology in use during the 1990s to the present day. Each network peer has a globally unique 48-bit key known as the MAC address factory-assigned to the network interface card (NIC), to ensure that all systems in an Ethernet LAN have distinct addresses.
Token-Ring was developed and promoted by IBM in the early 1980s and standardized as IEEE 802.5 by the Institute of Electrical and Electronics Engineers. Initially very successful, it went into steep decline after the introduction of 10BASE-T for Ethernet and the EIA/TIA 568 cabling standard in the early 1990s. A fierce marketing effort led by IBM sought to claim better performance and ...
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