Ethernet Physical Implementations Quiz

Title: Physical Implementations of Ethernet

• Ethernet is the protocol that carries most of the traffic on the Internet.
• Ethernet has evolved to meet the increased demand for high-speed LANs and can now carry data at 10 Gbps.
• The success of Ethernet is due to its simplicity, ease of maintenance, ability to incorporate new technologies, reliability, and low cost of installation and upgrade.
• Gigabit Ethernet has extended the original LAN technology to distances that make Ethernet a Metropolitan Area Network (MAN) and WAN standard.
• Ethernet specifies and implements encoding and decoding schemes that enable frame bits to be carried as signals across the media.
• Ethernet devices make use of a broad range of cable and connector specifications, including UTP copper cables and optical fibre.
• The Ethernet frame structure remains consistent across all of its physical implementations, allowing it to evolve to meet today's networking requirements.
• Ethernet technology was first established in 1970 with a program called Alohanet, which was a digital radio network designed to transmit information over a shared radio frequency between the Hawaiian Islands.
• The first version of Ethernet incorporated a media access method known as Carrier Sense Multiple Access with Collision Detection (CSMA/CD).
• The first versions of Ethernet used coaxial cable to connect computers in a bus topology, known as Thicknet (10BASE5) and Thinnet (10BASE2).
• The early implementations of Ethernet were deployed in a low-bandwidth LAN environment where access to the shared media was managed by CSMA/CD.
• The physical topology was changed to a star topology using hubs, which increased network reliability by allowing any single cable to fail without disrupting the entire network.